DILUTED CONCENTRATION. Now, calculate the diluted concentration of each of the species in the buffer. Acetic acid Sodium acetate Concentration in buffer (M) Rounded ____ ACID DISSOCIATION CONSTANT Use the dropdown to select the correct acid dissociation constant, Ka, of acetic acid. What is the K0 of acetic acid? PH CALCULATION Now, calculate the expected pH of this solution.
Answers
The diluted concentration of acetic acid is 0.02 M and the diluted concentration of sodium acetate is 0.01 M. The Ka for acetic acid is 1.8 x 10⁻⁵. The expected pH of this buffer is 4.44.
To calculate the diluted concentration of each species in the buffer, we will use the dilution formula:
C₁V₁ = C₂V₂
Where C₁ and V₁ are the initial concentration and volume of the species, and C₂ and V₂ are the final concentration and volume, respectively.
1. Diluted concentration of acetic acid (C₂):
C₁ (acetic acid) = 0.1 M
V₁ (acetic acid) = 8 mL
V₂ (final volume) = 40 mL
0.1 M * 8 mL = C₂ * 40 mL
C₂ (acetic acid) = (0.1 * 8) / 40 = 0.02 M
2. Diluted concentration of sodium acetate (C2):
C₁ (sodium acetate) = 0.1 M
V₁ (sodium acetate) = 4 mL
0.1 M * 4 mL = C₂ * 40 mL
C₂ (sodium acetate) = (0.1 * 4) / 40 = 0.01 M
The Ka for acetic acid is 1.8 x 10⁻⁵
Now we will calculate the expected pH of this buffer using the Henderson-Hasselbalch equation:
pH = pKa + log([A-]/[HA])
Where pH is the desired value, pKa is the negative logarithm of Ka, [A-] is the concentration of the conjugate base (sodium acetate), and [HA] is the concentration of the weak acid (acetic acid).
pKa = -log(Ka) = -log(1.8 x 10^(-5)) = 4.74
pH = 4.74 + log(0.01/0.02)
pH = 4.74 - 0.301
pH ≈ 4.44
The expected pH of this buffer is approximately 4.44.
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Related Questions
In the Haber Process, ammonia is synthesized from nitrogen andhydrogen:
N2 (g) + 3H2 -----> 2NH3(g)
ΔG at 298K for this reaction is -33.3 kj/mol. the valuef ΔG at 298 K for a reaction mixture that consists of 1.9 atmN2, 1.6 atm H2 and 0.65 atm NH3 is________.
a.) -3.86 x 103
b.) -1.8
c.) -7.25 x 103
d.) -40.5
e.) -104.5
Answers
The value of ΔG at 298 K for a reaction mixture containing 1.9 atm N2, 1.6 atm H2, and 0.65 atm, the answer is (a) -3.86 × 10^3.
NH3 can be calculated using the equation:
ΔG = ΔG° + RT ln(Q)
where ΔG is the standard Gibbs free energy change, ΔG° is the standard Gibbs free energy change at standard conditions, R is the gas constant, T is the temperature in Kelvin, and Q is the reaction quotient.
In this case, we are given ΔG° as -33.3 kJ/mol. To calculate Q, we need to use the partial pressures of the gases in the reaction mixture. The reaction stoichiometry tells us that the ratio of the partial pressures of N2, H2, and NH3 is 1:3:2. Therefore, we can write:
Q = (P(NH3))^2 / (P(N2) * P(H2)^3)
Plugging in the given values of P(N2) = 1.9 atm, P(H2) = 1.6 atm, and P(NH3) = 0.65 atm, we can calculate Q. Then, using the value of R = 8.314 J/(mol·K) and the temperature T = 298 K, we can substitute these values into the equation and solve for ΔG.
The calculated value of ΔG at 298 K for the given reaction mixture is approximately -3.86 × 10^3 J/mol. This value is equivalent to -3.86 kJ/mol. Therefore, the answer is (a) -3.86 × 10^3.
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The speed of light through clear rock salt is 1.98 × 108 m/s. Calculate its index of refraction. The speed of light in air (vacuum) is 3.00 x 108 m/s.
Answers
Answer:
1.52
Explanation:
speed of light through clear rock salt = speed of light in air (vacuum)/index of refraction
index of refraction of clear rock salt = speed of light in air (vacuum) / speed of light through clear rock salt
index of refraction of clear rock salt= 3.00 x 10^8 m/s / 1.98 × 10^8 m/s
index of refraction of clear rock salt= 3.00 x 10^8/1.98 × 10^8 ( the × 10^8 cancels out)
index of refraction of clear rock salt= 3.00/1.98
index of refraction of clear rock salt= 1.52
The speed of light through clear rock salt is 1.98 × 108 m/s. The index of refraction is 1.52.
What is an index of infraction?The ratio of the speed of light in a vacuum (c) to the speed of light in a medium (c') is known as the index of refraction (n): The propagation vector in the new medium has a different angle with respect to the normal as a result of this difference in speed when light travels from one medium to another at an angle.
Speed of light through clear rock salt = speed of light in the air (vacuum)/index of refraction
The index of refraction of clear rock salt = speed of light in the air (vacuum) / speed of light through clear rock salt
The index of refraction of clear rock salt= 3.00 x 10⁸ m/s / 1.98 × 10⁸ m/s
The index of refraction of clear rock salt= 3.00 / 1.98 = 1.52
Therefore, the index of refraction is 1.52.
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What is the neutral atom that has its first two energy levels filled, has 5 electrons in its third energy level, and has no other electrons
Answers
This corresponds to the electronic configuration; [Ne] 3s2. This electronic configuration belongs to magnesium.
What is neutral Atom?
When an atom has an equal numeral of electrons and protons, it has an equivalent number of negative (the electrons) and positive electric charges (the protons). As a result, the atom's total electric charge exists at zero, and it stands stated to be neutral. Therefore, all the elements in the periodic table exist as neutral atoms.
The number of electrons on a neutral atom stands equal to the number of protons in the nucleus of the atom. This is understood as the atomic number, Z. The removal or addition of electrons to a neutral atom forms ions that maintain a net negative or positive charge.
The neutral atom that holds its first two energy levels filled, has 2 electrons in its third energy level and includes no other electrons exist magnesium. Electrons in atoms exist positioned in energy levels. These energy levels are equal to shells in the Bohr model of the atom.
The atom thus expressed in the question contains its first and second energy levels filled and two electrons in the third level. This corresponds to the electronic configuration; [Ne] 3s2. This electronic configuration belongs to magnesium.
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Sandy wanted to find out if the color of food would affect..
Answers
A redox reaction is set up so that both half reactions take place in separate beakers that are connected by a salt bridge and a wire. A path for the transfer of ions is provided by the? (1) anode (2) cathode (3) salt bridge (4) wire
Answers
Answer:
Salt bridge
Explanation:
Salt bridge is used in an electrolytic cell to transfer electrons from the anode to the cathode.
Salt bridge are used because they do not interfere with the constituents of the cell I.e the anode (+very electrode) and cathode(-ve electrode).
Examples of salt bridges are AgNO₃, KCl etc.
Salt bridge can be described as a tool used to link the oxidation half cell and reduction half cell in an electrolytic set-up or galvanic cell.
At what position(s) will electrophilic aromatic substitution occur for the following compound?bromobenzene
Answers
In bromobenzene, the bromine atom is an electron-withdrawing group that deactivates the ring towards electrophilic substitution reactions. However, since the bromine atom is ortho-para directing, it directs incoming electrophiles to the ortho and para positions relative to itself.
Therefore, electrophilic aromatic substitution can occur at either the ortho or para positions in bromobenzene, and the meta position is less favored due to the deactivating nature of the bromine atom.
The reaction could be summarized as follows:
+ E+ + HX
| |
Ar-Br + E+ → Ar-E + HBr
| |
+ E+ + HX
where Ar represents the aromatic ring, Br represents the bromine atom, E+ represents the electrophile, and HX represents the acid catalyst.
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what are electrode potential
Answers
Answer:
Electrode potential is the electromotive force to the galvanic cell built standard.
Explanation:
Electrode potential is the convention electrode is the standard hydrogen electrode to the value zero potential.
Electrode potential is the origin to the developed in that interface between the electrode and electrolyte.Electrode potential is the interface due to the transfer of across the specific of molecules to the electrode potential.Electrode potential that working potential non zero reaction net current the working electrode potential.Electrode potential is that performed extrapolation of that measured to that values set that standard.Electrode potential under the depends on the nature of that contacting electrode reactions to the interface.Electrode with hydrogen is that ideal solution is zero potential to the all temperature to standard formation.Electrode potential to the working electrode, counter electrode and reference electrode that using three setup electrode.Electrode potential are performed the positive of that connected to that working electrode terminal to reference electrode.Answer:
In electrochemistry, electrode potential is the electromotive force of a galvanic cell built from a standard reference electrode and another electrode to be characterized.
Formative Assessment 1:
Identify the P.E.N (Proton, Electron, and Neutron) number of the following elements:
Sodium (Na)
Chlorine (Ag)
Magnesium (Mg)
Oxygen (O)
Answers
Answer:
p-e-n
1- Na=11-11-12
2-Cl=17-17-29
3-Mg=12-12-12
4-O=8-8-8
Explanation:
chlorine is Cl
The PEN value for sodium, chlorine, magnesium, and oxygen is (11,11,12),(17,17,18),(12,12,12), (8,8,8) respectively
The atomic number(Z) is equal to the number of protons to equal to number of electrons.
The number of neutrons is equal to atomic mass minus the atomic number
n=A-Z
For Na, Z=11, p=e=11
The number of neutrons is 23-11=12
For Cl, Z=17, e=17
The number of neutrons is A-Z=35-17=18
For magnesium, Z=12, A=24
The number of neutrons is 24-12=12
For O, Z=8, p=e=8
The number of neutrons is 16-8=8
The atomic number is the basis of the periodic table.It is equal to the number of protons.The number of neutrons is atomic mass minus atomic number.To learn more about atomic number visit:
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Consider the following equilibrium: 4nh3(g) + 3o2(g) right arrow 2n2(g) + 6h2o(g) 1531 kj the concentrations of the reactants would decrease after ammonia was added to the system.a. trueb. false
Answers
4NH₃ + 3O₂ ⇄ 2N₂ + 6H₂O, in the following equilibrium,
The concentration of the reactants would decrease after ammonia was added to the system, Hence The statement is true. because,
The addition of more ammonia (a reactant) would offset the state of equilibrium.To restore chemical equilibrium, the system must consume the excess reactants to form more products.A shift to favor the products side occurs.According to Le Principle:
Systems that have attained the state of chemical equilibrium will tend to maintain their equilibrium state. External factors such as the addition of products and reactants result in the disruption of the equilibrium state. According to Le Principle, we expect the system to shift to the direction that offsets the change in concentration. This results in the state of chemical equilibrium to be reestablished.To learn more about equilibrium here
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Based on the data in the graph, what can be said about current carbon
dioxide levels?
A. They are far higher than the highest natural levels.
B. They are at the high point of a natural, repeating cycle.
C. They are no different from levels in the past.
D. They are much lower than normal.
4
Answers
In an ecosystem, based on the data in the graph the current carbon
dioxide levels are far higher than the highest natural levels..
Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.
Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system.
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What are the types of precipitation?
Select four correct answers.
(1) dew
(2) hail
(3) wind
(4) rain
(5) sleet
(6) fog
(7) snow
(I might answer it by myself so be quick)
Answers
Answer:
Rain,Hail,Snow,sleet. Hope this helped you out!
Water is a pure substance. Which of the following is true about water?
a
A chemical change is required to separate the elements present in it.
b
A physical change is required to separate the elements present in it.
c
It is made up of two compounds, each with a different set of atoms.
d
It is made up of an element and a compound.
Answers
Answer:
A chemical change is required to separate the elements present in it.
Explanation:
The only true statement from the choices given is that water as a pure substance requires a chemical change to separate the elements present in it.
Water is a molecule consist of two atoms of hydrogen and one atom of oxygen.
The atoms are covalently bonded together. A chemical process, the electrolysis of water is often used to separate the atoms of a water. Physical changes cannot be used to separate the atoms of water. Water is a compound which consists of two elements.Therefore, we see that only the first choice satisfies this problem.
which list of particles is in order of increasing mass
Answers
The correct order of particles in increasing mass is option A) Electron, neutron, proton
The electron, being the lightest particle, has the smallest mass among the three. It weighs approximately 9.1 x 10^-31 kilograms. Neutrons, slightly heavier, have a mass of around 1.67 x 10^-27 kilograms. Protons, being the heaviest, have a mass of about 1.67 x 10^-27 kilograms.
In conclusion, the order of particles in increasing mass is electron, neutron, and proton. The electron, with the smallest mass, is followed by the neutron, and the proton is the heaviest among the three particles.
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The complete question is:
Which list of particles is in order of increasing mass:
A) Electron, neutron, proton
B) Neutron, electron, proton
C) Proton, electron, neutron
A beaker contains a mixture of sand and salt. A student adds water to dissolve the salt. Which processes can be used to separate out the sand and salt?
Answers
Filtration and evaporation are used to separate sand and salt mixture.
Separation of salt and sand mixture is as follows :-
The mixture of salt and sand is separated by filtration followed by an evaporation processes.Filtration is used to separate sand from a combination of sand and salt solution Sand is left on the filter paper as a residue after filtering. By boiling the filtrate left on filter paper , common salt may now be produced. Boiling causes all of the water to evaporate, leaving salt behind . This is known as evaporation.In other words, based on the fact that salt is soluble in water, while sand is not. So, you used the difference in solubility to separate a mixture of sand and salt.
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Answer: Filtration to collect the sand and distillation to collect the salt.
Explanation:
What happens if you add a neutron to an atom?
Answers
Answer:
if you add or subtract a neutron from an atom it will become a new isotopes of the same element
Answer:
When you add a neutron to an atom you create a new isotope of the same element you had begun with. Neutrons do not carry an electric charge so it doesn't change the charge.
Explanation:
a student uses a glue stick with an area of 4 cm3, putting
a pressure of 0.5 N/cm2 on her book. Calculate the force
she puts on the glue stick.
Answers
Answer:
So F=2N
Hope this helps.
Explanation:
P= F/A, where P is pressure, F is force, A is area.
So
P=F/A
0.5N/cm2 = F/4cm2 <--(do cross
2N=F multiplication,
4×0.5)
( And pls check on the unit of area u wrote, it should be (4cm2), not (4cm3) Unit of area is cm2.)
List at least four characteristics of acids
Answers
Answer:
pH>7
sour taste
donate H+ ions
turn litmus paper from blue to red
Explanation:
Answer:
Explanation:
pH < 7.
Sour taste (though you should never use this characteristic to identify an acid in the lab)
Reacts with a metal to form hydrogen gas.
Increases the H+ concentration in water.
Donates H+ ions.
Turns blue litmus indicator red.
In addition to the ABO system, human blood may be typed as Rh+ or Rh-. The blood types Rh+ and Rh- are controlled by the dominant allele R (Rhesus positive) and the recessive alleler (Rhesus negative)
Answers
In addition to the ABO blood typing system, the Rh factor is another important marker used to classify human blood. The Rh factor determines whether a person's blood is Rh positive or Rh negative. This factor is determined by the presence or absence of specific proteins, called Rh proteins, on the surface of red blood cells.
The gene responsible for the Rh factor is inherited from our parents and has two alleles: Rh+ (dominant) and Rh- (recessive). The dominant allele, Rh+, produces the Rh proteins and results in a positive Rh factor. The recessive allele, Rh-, does not produce the Rh proteins, leading to a negative Rh factor.
Individuals can have different combinations of these alleles. A person who is homozygous dominant, meaning they inherit Rh+ alleles from both parents, will have a blood type of Rh+Rh+ (double positive). On the other hand, a person who is homozygous recessive, inheriting Rh- alleles from both parents, will have a blood type of Rh-Rh- (double negative). Finally, someone who is heterozygous dominant, inheriting an Rh+ allele from one parent and an Rh- allele from the other, will have a blood type of Rh+Rh- (positive/negative).
Determining the Rh factor is important in blood transfusions and during pregnancy. Rh-positive blood can generally be transfused to individuals with either Rh+ or Rh- blood types. However, Rh-negative blood should only be given to individuals with Rh- blood types to avoid potential adverse reactions.
In summary, the Rh factor is an additional marker found on red blood cells, alongside the ABO blood types. It is controlled by a single gene with two alleles: Rh+ (dominant) and Rh- (recessive). The presence of the Rh protein determines Rh positivity, while its absence indicates Rh negativity. Understanding an individual's Rh factor is crucial for safe blood transfusions and managing pregnancies to prevent complications related to Rh incompatibility.
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Show how you would synthesize each compound from benzene, toluene, or phenol using the following reactions Reactions 1. Halogenation 2. Nitration 3. Sulfonation 4. Friedel-Crafts acylation 5. Friedel-Crafts alkylation 6. Oxidation of methyl group 7. Reduction of nitro group
Answers
Halogenation, Nitration, Sulfonation, Friedel-Crafts acylation, Friedel-Crafts alkylation, Oxidation of methyl group, Reduction of nitro group are distinct chemical reactions involving organic compounds.
Using Halogenation, Nitration, Sulfonation, Friedel-Crafts acylation and alkylation, Oxidation of methyl group and Reduction of nitro group, benzene, toluene, or phenol can be synthesized in the following ways:
1. Halogenation: Benzene, toluene, or phenol can be halogenated by reacting them with a halogen (e.g., chlorine or bromine) in the presence of a Lewis acid catalyst.
For example, benzene can be chlorinated to form chlorobenzene using FeCl3 as a catalyst.
2. Nitration: Nitration of benzene, toluene, or phenol involves the substitution of a nitro group (-NO2) onto the aromatic ring.
This reaction is typically carried out by treating the compound with a mixture of concentrated nitric acid and sulfuric acid. For instance, benzene can be nitrated to produce nitrobenzene.
3. Sulfonation: Sulfonation introduces a sulfonic acid group (-SO3H) onto the aromatic ring. It can be achieved by reacting benzene, toluene, or phenol with concentrated sulfuric acid.
For example, benzene can be sulfonated to form benzenesulfonic acid.
4. Friedel-Crafts acylation: Friedel-Crafts acylation involves the reaction of benzene or toluene with an acyl chloride in the presence of a Lewis acid catalyst, such as aluminum chloride (AlCl3).
This reaction results in the formation of an aromatic ketone. For instance, benzene can be acylated to produce acetophenone.
5. Friedel-Crafts alkylation: Friedel-Crafts alkylation allows the introduction of an alkyl group onto the aromatic ring.
It can be achieved by reacting benzene or toluene with an alkyl halide in the presence of a Lewis acid catalyst. For example, benzene can be alkylated to form ethylbenzene.
6. Oxidation of methyl group: Toluene contains a methyl group attached to the aromatic ring, which can be oxidized to a carboxylic acid.
This can be accomplished by treating toluene with a strong oxidizing agent, such as potassium permanganate (KMnO4) or chromic acid (H2CrO4).
The oxidation of the methyl group in toluene results in the formation of benzoic acid.
7. Reduction of nitro group: Nitro groups (-NO2) can be reduced to amino groups (-NH2) by various reducing agents, such as hydrogen gas in the presence of a metal catalyst (e.g., palladium, Pt).
For example, nitrobenzene can be reduced to aniline (phenylamine) by catalytic hydrogenation.
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A foam square has a mass of 25 g and a volume of 90 mL. What is the density?
Answers
Answer:
The answer is 0.28 g/mLExplanation:
The density of a substance can be found by using the formula
\(density = \frac{mass}{volume} \\ \)
So we have
\(density = \frac{25}{90} = \frac{5}{18} \\ = 0.277777...\)
We have the final answer as
0.28 g/mLHope this helps you
Part of which generalized New York State landscape region is drained by
the Susquehenna River and its tributaries?
Answers
Mid-Atlantic region generalized New York State landscape region is drained by the Susquehenna River and its tributaries
What landscape region is the Susquehanna River located in?The Susquehanna River (/sskwhaen/; Lenape: Siskwahane) is a significant river that runs across the Mid-Atlantic area of the United States, where it crosses the lower Northeast and the Upland South. The longest river on the East Coast of the United States, it is 444 miles (715 km) long.It originates in Otsego Lake in the heart of New York State and travels over the Appalachian Plateau in Maryland, Pennsylvania, and New York before emptying into the Chesapeake Bay's entrance at Havre de Grace in Maryland.The Susquehanna River Basin is the name of the basin around the Susquehanna River.To learn more about Susquehenna River refer to:
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Could anyone check what I have done to make sure I am doing this right and then help me figure out what I am missing in the blanks or need to change?
Answers
The group number of the given atoms is given below as follows:
Fr - Group 1, Nickel - Group 10, Calcium, Ca - Group 2, Thorium, Th - Group # of the actinide series.What are groups in the periodic table?Groups are the vertical columns in the periodic table that classify elements according to their related chemical characteristics and electron configurations.
There are 18 groups in the periodic table, numbered from 1 to 18. Families are another name for these social units.
In addition to having unique names or designations depending on the reactivity or components they include, the groups of elements are identified by numbers.
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b. The heat of reaction for the process described in (a) can be determined by
applying Hess's law. The heats of reaction shown in the table below can be
obtained experimentally or looked up in tables of enthalpy data. Which two of
these heats of reaction would be the easiest and safest to measure in the
laboratory, and which two are better obtained through reference sources?
Why? Hint: Consider whether a reaction takes place in aqueous solution or
instead involves noxious gases.
Answers
Answer: I believe the 1st and 3rd reactions are better obtained through reference sources and the 2nd and 4th are easiest and safest to measure in the laboratory.
Explanation:
I am also working on this Pre-lab right now, and I looked back at the first question to help get my answer. In the first question (a), it is noted that ammonia gas and gaseous hydrochloric acid are both potentially dangerous in gaseous form. I saw that both the 1st and 3rd reactions contained noxious gases (I knew this because there was a (g) in both of these reactions). Using the knowledge from the first question that the noxious gases were potentially dangerous, I assumed that those reactions were the ones that are better obtained through the reference sources. The 2nd and 4th reactions did not contain any noxious gases, so I assumed those ones were easiest and safest to measure in the laboratory. Hope this helps!
Scientist repeats an experiment and gets a
different result. What should the scientist do next
Answers
Answer:
tty to fin out what happend by redoing it
How does an area’s climate determined
Answers
Answer:
The simplest way to describe climate is to look at average temperature and precipitation over time. Other useful elements for describing climate include the type and the timing of precipitation, amount of sunshine, average wind speeds and directions, number of days above freezing, weather extremes, and local geography.
Explanation:
hope it helps
You have 150. g of a bleach solution. The percent by mass of the solute, sodium hypochlorite (NaOCI), is 3.62%.
How many grams of NaOCI are in the solution?
Answers
Answer:
There are 5.43 grams of NaOCl
Explanation:
The given percent by mass of the solute tells us that out of the 150 g of the solution, 3.62% are due solely to the solute.
In other words, the mass of the solute in the solution is:
150 g * 3.62/100 = 5.43 gThus, in 150 grams of the given bleach solution, there are 5.43 grams of sodium hypochlorite.
Two pieces of the same metal or placed on the table with the piece of metal have the same density mass and texture which characteristic must be the only difference between the two samples
A-they contain a different amount of matter per unit volume
B-they have different dimensions
C-they are made up of a different type of matter
D-they have different boiling points
Answers
Answer:
B-they have different dimensions
Explanation:
It was explicitly stated in the question that the both samples are exactly pieces of the same metal. If that is so, pieces of the same metal must have the same density, contain the same quantity of matter, have the same boiling point and have the same amount of matter per unit volume.
However, the two pieces of metal may have different dimensions.
which of the following salts will result in basic solution in water? a. nacl b. na2s c. bacl2 d. fecl3 e. cuso4 g
Answers
In water, the Nacl salts will produce a basic solution.
The salt NaCl is hydrolyzed to produce sodium ions and hydrogen ions. Since they are both conjugate species of a strong base or acid, they do not undergo hydrolysis water and instead stay in solution as ions. In this salt solution, the pH stays constant.
A neutral salt is sodium chloride, which is produced by neutralizing sodium hydroxide and hydrochloric acid. Any strong acid that is neutralized by a strong base always produces a neutral salt.
Other salt solutions might be acidic or basic, in contrast to NaCl. One of the component ions functioning as a weak acid and weak base is the cause of this. Salt acetate is one illustration of this. The acetate ion's existence enables it to function as a diluted solution in the solution. The pH becomes basic as a result.
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A mixture contains only NaCl and Fe(NO3)3. A 0.471 g sample of the mixture is dissolved in water and an excess of NaOH is added, producing a precipitate of Fe(OH)3. The precipitate is filtered, dried, and weighed. Its mass is 0.137 g. Calculate the following.
Answers
The process's chemical reaction is
From the foregoing reaction, it can be deduced that 0.001 mol of Fe(OH)3 is produced for every 1 mol of Fe(NO3)3
Therefore, 0.001 mol of Fe(NO3)3 may be converted into 0.001 mol of Fe(OH)3 Fe(NO3)3 mass in the sample is
Consequently, the sample's Fe(NO3)3 mass is 0.242 g.
calculating the mass percentage of in the sample
The sample's mass percent of Fe(NO3)3 is
Consequently the samples mass percent of Fe(NO3)3 is 53.07%
Producing something is the act of creating something out of components or raw resources To put it another way production employs inputs to produce an output that is fit for consumption a thing or product that has value for a consumer or end user. Okay, so we all know that production is the act of manufacturing goods from raw materials, but it also has economic worth since it results in a product that is valuable and will satiate people's desires and requirements. A company that creates items is referred to as a producer in economics These businesses use the inputs—both material and immaterialthat are available to them to create commodities that consumers will wish to purchase
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which of the following has more particles
6.02x10(small numbers)23 molecules CO2
9 moles PF2
10 mole NaCI
18 g H2O
Answers
Answer:
A mole is Avogadro's number of items: 6.022 × 1023.
Explanation: