in a saturated aqueous solution of mgf2 , the magnesium ion concentration is 2.64×10−4 m and the fluoride ion concentration is 5.29×10−4 m. calculate the solubility product, sp , for mgf2 .
Answers
In a saturated aqueous solution of MgF2, the magnesium ion concentration is 2.64 × 10−4 M and the fluoride ion concentration is 5.29 × 10−4 M. The solubility product is Ksp, for MgF2 is 7.15 × 10−11 M3.
Calculate the solubility product, Ksp, for MgF2.Ksp, the solubility product, is defined as the product of the molar concentrations of the ions involved in the chemical equation for the dissolution of an ionic solid that is at equilibrium with the undissolved solid. MgF2(s) ↔ Mg2+(aq) + 2F-(aq)In the above equation, MgF2 is dissociating into Mg2+ and F- ions. The concentration of Mg2+ ions is 2.64 × 10−4 M, and the concentration of F- ions is 5.29 × 10−4 M.Ksp for MgF2 can be calculated by substituting the molar concentration values into the expression below:Ksp = [Mg2+][F-]2=2.64×10−4 M×(5.29×10−4 M)2=7.15×10−11 M3.
Know more about aqueous solution here:
https://brainly.com/question/26856926
#SPJ11
Related Questions
How many grams of CO2 will dissolve in 580. g water at 60.°C?
Answers
Answer:
128gCaCl2 per 200gH2O
Explanation:
I might be wrong rlly srry if I am:/ Hope this helps doe have a wonderful day
Which of the following forms of energy is not transmitted in waves?
Question 5 options:
light
sound
electrical
heat
Answers
Answer:
light
Explanation:
i did the quiz
hey guys can u help me ASAP its on science
Answers
Answer:
The answer to your question is A - electrons
Explanation:
To be honest it's pretty obvious, none of the other things could possibly come with valence behind it so electrons is the only logical answer.
Answer:
A. electrons
Explanation:
The valence electrons on the valence shell which is the last layer of electrons are the same for atoms in the same column.
Carbon dioxide is used by plants for ___?
Answers
Answer:
photosynthesis
Explanation:
that's the way plants feed themselves
Answer:
photosynthesis
Explanation:
I hope i helped
Three moles of nitrogen at 30°c, contained in a rigid vessel, is heated to 250°c. How much heat is required if the vessel has a negligible heat capacity?.
Answers
The amount of heat required is 19219.2 J
Determination of the mass of nitrogen Mole = 3 moles Molar mass of nitrogen = 2 × 14 = 28 g/mol Mass of nitrogen =?Mass = mole × molar mass
Mass of nitrogen = 3 × 28
Mass of nitrogen = 84 g
How to determine the heat required Mass of nitrogen (M) = 84 gInitial temperature (T₁) = 30 °C Final temperature (T₂) = 250 °Change in temperature (ΔT) = 250 – 30 = 220 °C Specific heat capacity (C) = 1.040 J/gºC Heat (Q) =?Q = MCΔT
Q = 84 × 1.040 × 220
Q = 19219.2 J
Learn more about heat transfer:
https://brainly.com/question/10286596
which substance will evaporate first???????????????????
Answers
Answer:
I think it would be a liquid.
Explanation:
If the temperature hits a certain point, it will turn to ice. If the ice gets exposed to heat, it will melt and return back to it's natural form, a lqiuid. If the liquid is exposed to enough heat, it will evaporate. Not sure if this is right, but I tried my best!
Which of the following molecules contains six bonding electrons?
A C2H4
B CO2
C H2S
D NCl3
Answers
Answer:
c2h4 (etthane........
bexcuse it has 6 bond of hydrogen
C₂H₄ molecules contains six bonding electrons. Therefore, option A is correct.
What do you mean by the term bonding ?Chemical bonding is the process through which two or more atoms, molecules, or ions establish a chemical link to create a chemical compound. The atoms in the resultant molecule are held together by these chemical bonds.
Chemical bonds have three basic characteristics that must be taken into account: their strength, length, and polarity. The distribution of electrical charge among the atoms connected by a bond determines its polarity.
C₂H₄ molecules has six bonding electrons. This molecule is called as Ethylene. When bonding is done between two atoms, each atom shares a pair of electrons with each other.
Hence, for every one bond, two electrons are shared between two atoms
Thus, option A is correct.
To learn more about the bonding, follow the link;
https://brainly.com/question/10777799
#SPJ6
What is the relationship between a solution and a mixture.
Answers
Answer: In a mixture, substances are generally just mixed and are not completely dissolved. In a solution, substances are dissolved completely and they cannot be filtered out.
Explanation:
Which metals have similar chemical properties?
barium
beryllium
rubidium
radium
titanium
calcium
platinum
Answers
Answer:
Barium
Beryllium
Radium
Calcium
Explanation:
The first Tacoma Narrows Bridge in Washington crossed over a strait in Puget Sound. At the time the suspension bridge was built, construction workers noticed that it moved up and down in the wind. Measures to stop the bridge’s movement were ineffective, but the bridge was opened to the public on July 1, 1940. The bridge collapsed on November 7, 1940. Luckily, no people were seriously injured.
Determine which technological design criteria the Tacoma Narrows Bridge did and did not meet.
Answers
Answer:
Explanation:
The Tacoma Narrows Bridge is the historical name given to the twin suspension bridge—originally built in 1940—that spanned the Tacoma Narrows strait. It collapsed just four months later due to aeroelastic flutter. Since then, this topic has become popular, with several case studies discussing the failure phenomenon of suspension cable bridges.
In the state of Washington, the construction of the Tacoma Narrows Bridge was completed and opened to the traffic on July 1st, 1940. It was the very first bridge to incorporate a series of plate girders as roadbed support, and the first bridge of its type (cable suspension). It was also the third largest suspension bridge of its time, with a 2800-foot central span and two side spans of 1100 feet each.
A west-side approach had a continuous steel girder of 450ft, while the east side had a long reinforced concrete frame of 210ft. It had two cable anchorages of 26ft. along roadways, two 5ft. sidewalks and two 8ft. deep stiffening girders. Among several other structural details, the suspension cable anchorages to which the cables were connected were made of 20,000 cubic yards of concrete, 6 lakh pounds of structural steel, and 2.7 lakh pounds of reinforcing steel. Because of its extremely long length, it was considered a ‘narrow bridge’. The overall construction cost was estimated to be a whopping $6 Million in 1940. Considering inflation, this is equivalent to almost $1 Billion, and all of this for something that lasted just four months and seven days. Yet, this remains a great engineering feature for civil engineers to ponder over.
Benzoic acid contains 68.8% carbon, 4.95% hydrogen, and 26.25% oxygen. Find the empirical formula of benzoic acid.
Answers
Answer:
C7H6O2
Explanation:
Let;
68.8% of Carbon represents 68.8g
4.95% of Hydrogen represents 4.95g
26.25% of Oxygen represent 26.25g
Next, we convert each gram value to mole value by dividing by their respective molar mass {C = 12, H = 1, O = 16}
C = 68.8/12 = 5.73 mol
H = 4.95/1 = 4.95 mol
O = 26.25/16 = 1.64 mol
Next, we divide each mole value by the smallest (1.64mol)
C = 5.73 ÷ 1.64 = 3.49
H = 4.95 ÷ 1.64 = 3.02
O = 1.64 ÷ 1.64 = 1
Next, we multiply each ratio by 2 to obtain our simplest whole number ratio (empirical formula)
C = 3.5 × 2 = 7
H = 3.02 × 2 = 6
O = 1 × 2 = 2
Hence, the ratio of C, H and O is 7:6:2 and the empirical formula of benzoic acid is C7H6O2
a uv/vis spectrometer was used to determine the concentration of an unknown colored compound in solution. the cuvette had a path length of 1.00 cm and the molar absorptivity was found to be 0.296 m- 1cm-1. find the concentration of the unknown compound in solution if the absorbance was measured to be 0.314 a.
Answers
1.0608 mol/L is the concentration of the compound measured using UV/Vis spectrophotometer.
The equation for the Beer-Lambert Law has the following structure:
A=E×b×c
Where b is the sample's route length, E is the molar absorptivity, A is absorbance, and c is the compound's concentration in solution.
In question: E is 0.296 m- 1cm-1. A is .314 and path length is 1.00 cm.
By adding values in formula the answer is 1.0608 mol/L.
To know more about Beer's lambert law, click here,
brainly.com/question/8831959
#SPJ4
2) A 1.00 g sample of vitamin C contains C, H, and O and is combusted to produce 1.50 g of CO₂ and 0.41 g of H₂O.
Find the empirical formula of vitamin C. If the molecular mass of vitamin C is 176.12 g/mol, what is the molecular formula?
Answers
Answer:The empirical formula for this vitamin : C₃H₄O₃
Further explanation
The empirical formula is the smallest comparison of atoms of compound =mole ratio of the components
The principle of determining empirical formula
Determine the mass ratio of the constituent elements of the compound.
Determine the mole ratio by dividing the percentage by the atomic mass
Mass of C in CO₂ :(MW C = 12 g/mol, CO₂=44 g/mol)
Mass of H in H₂O :(MW H = 1 g/mol, H₂O = 18 g/mol)
Mass O = Mass sample - (mass C + mass H) :
mol ratio C : H : O =
Explanation:
what is the value of a in the following nuclear reaction? 237 93np→233 91pa+azx
Answers
The main answer to your question is that the value of "a" in the given nuclear reaction is 4.
To provide an explanation, "a" represents the atomic mass number of the unknown particle "x" produced in the reaction.
The total atomic mass number of the reactants (np) must be equal to the sum of the atomic mass numbers of the products (pa and x), hence:
237 + 0 = 233 + 4x
Solving for "x", we get:
x = (237 - 233)/4 = 1
Therefore, the atomic mass number of the unknown particle "x" is 4+91 = 95.
In the nuclear reaction 237_93 Np → 233_91 Pa + A_Z X, the value of 'a' is 4 to maintain the conservation of mass number.
In summary, the value of "a" is 4, and the atomic mass number of the unknown particle "x" is 95.
Learn more about reactants click here:
https://brainly.com/question/6421464
#SPJ11
What is the bonding requirement for carbon atoms?
Answers
Answer:
carbon atoms tend to make four bonds, each carbon atom will have the number of hydrogen atoms that are required for four bonds. This compound contains 16 hydrogen atoms for a molecular formula of C 8 H 16.
Explanation:
if 5.4 moles of Na₂CO₃ react with excess calcium hydroxide. how many grams of CaCO₃ will be produced?
Na₂CO₃+Ca(OH)₂=2NaOH+CaCO₃
Answers
Answer:
540.47g approximately
Explanation:
No. of moles in Na₂CO₃ = 5.4 moles
Mole ratio of Na₂CO₃ : CaCO₃ = 1:1
No. of moles in CaCO₃ = 5.4 moles
Mass of CaCO₃ = 5.4 × 100.0869
= 540.46926g
What are two factors that can change the rate of a chemical?
Answers
Answer:
the surface area of a solid reactant.
temperature.
presence/absence of a catalyst.
What is the molar mass of diphosphorous heptasulfide
Answers
Answer:
347.6995462
Phosphorus heptasulfide, free from yellow and white phosphorus appears as light-yellow crystals, light-gray powder, or fused solid. Melting point 310°C.
...
what process breaks down a sample of soil from the mineral parent into smaller particles?
Answers
PLEASE HELP DUE SOON
Describe one piece of evidence that supports the big bang theory.
Answers
Answer: Red-Shift
Explanation:
It suggests that the universe is expanding, as distant stars/galaxies must be in motion away from us to cause the light to shift towards the red end of the spectrum (or into longer wavelengths of the EM spectrum). This agrees with the Big bang theory as that suggests the universe is expanding.
for 280.0 ml of pure water, calculate the initial ph and the final ph after adding 0.028 mol of naoh .
Answers
The initial pH of pure water is 7.0, and after adding 0.028 mol of NaOH to 280.0 ml of water, the final pH is approximately 13.0 due to an increase in hydroxide ion concentration.
The initial pH of pure water is 7.0, as it is considered neutral. After adding 0.028 mol of NaOH to 280.0 ml of pure water, the final pH can be calculated.
Pure water has a neutral pH of 7.0, which means it has an equal concentration of hydrogen ions (H+) and hydroxide ions (OH-). When NaOH is added to water, it dissociates into Na+ and OH- ions. The OH- ions react with the H+ ions in the water, resulting in an increase in the concentration of hydroxide ions and a decrease in the concentration of hydrogen ions.
To calculate the final pH, we need to determine the concentration of OH- ions after the addition of NaOH. Since 0.028 mol of NaOH is added to 280.0 ml of water, the concentration of OH- ions can be calculated using the molarity formula:
Molarity = Moles of solute / Volume of solution (in liters)
Converting the volume of water to liters (280.0 ml = 0.280 L), we can calculate the molarity of the OH- ions:
Molarity of OH- = (0.028 mol) / (0.280 L) = 0.10 M
The concentration of OH- ions corresponds to the pOH value, which is the negative logarithm (base 10) of the hydroxide ion concentration:
pOH = -log [OH-] = -log (0.10) ≈ 1.0
Since pH + pOH = 14 (for neutral solutions), the final pH can be calculated:
pH = 14 - pOH = 14 - 1.0 = 13.0
Therefore, the final pH after adding 0.028 mol of NaOH to 280.0 ml of pure water is approximately 13.0.
To learn more about Molarity click here: brainly.com/question/2817451
#SPJ11
fluorine electron configuration
Answers
Answer:
what about it
Explanation:
Mass spectrometry identifies molecules based on what?.
Answers
Mass spectrometry identifies molecules based on their molecular weight and weights of fragments formed from the molecules.
What is Spectrometry?This is referred to as the measurement of the interactions between light and matter ad involves the use of different parameters.
Mass spectrometry is referred to as a tool which is used to measure the molecular weight and weights of fragments formed from the molecules in the form of mass-to-charge ratio. It is done using electric and magnetic fields so as to get the accurate result and is therefore the reason why it was chosen as the correct choice.
Read more about Mass spectrometry here https://brainly.com/question/19578729
#SPJ1
How can you determine an atom's atomic mass?
Answers
Answer: I think you're supposed to add the protons and neutrons and then that's your answer. Sorry if I'm wrong :/
Explanation:
Please help ASAP I will give Brainliest
How many grams of nitrogen gas are in a balloon with a volume of 35. 7 L at STP?
Answers
There are 44.62 grams of nitrogen gas in the balloon with a volume of 35.7 L at STP.
The volume of a balloon is 35.7 L at STP.
STP is the abbreviation for Standard Temperature and Pressure, which means a temperature of 273.15 K and a pressure of 101.325 kPa.
The number of grams of nitrogen gas in a balloon of this volume is requested.
A mole of any element has 6.02 × 1023 atoms, and the atomic mass of nitrogen is 14.01 grams.
One mole of a gas is equal to its molar volume, which is 22.4 L at STP. 1 mole of N2 gas = 28.02 g of N2 gas
STP's molar volume is 22.4 L, and the balloon's volume is 35.7 L.
That is, there are 35.7/22.4 moles of N2 gas in the balloon.= 1.59 moles of N2 gas
Since one mole of N2 gas weighs 28.02 g, 1.59 moles of N2 gas will weigh:
28.02 g/mol × 1.59 mol = 44.62 g
Therefore, there are 44.62 grams of nitrogen gas in the balloon with a volume of 35.7 L at STP.
For such more questions on nitrogen gas
https://brainly.com/question/31324537
#SPJ8
What is the maximum number electrons that can occupy any d orbital?
6
14
4
10
Answers
Answer:
10 electrons max
Explanation:
I hope this helps
Why do we need to do all our comparisons at the same temperature and pressure?
Answers
Answer:
it can affect ur research
Explanation:
we need to do this because temperature and pressure can effect our results. In order to get the most accurate results possible we must keep conditions of a substance that we can control the same.
Can you help me with this assignment
Answers
How do renewable and nonrenewable resources differ?
Answers
Natural resources are those that are accessible without human intervention. Like the sun, the atmosphere, the air, the water, the land, the mines, the vegetation, and animal life.
There are two categories of natural resources: renewable resources and non-renewable resources.Renewable resources :
These are the kind of natural resources that, even after constant use, do not become exhausted or depleted.For example, Wind and SunlightThese have low carbon footprints and low carbon emissions.Infrastructure costs for the production of renewable energy are very costly.Doesn't cause Pollution. Cause Pollution when usedNon Renewable resources :
These are the natural resources that, as a result of ongoing human usage, become exhausted or depleted and are neither renewed nor replaced.For example, groundwater, fossil fuels, and mineral ores etc.These emit more carbon than other, which increases their carbon footprint.Infrastructure costs for the production of energy from these resources are low.Learn more about natural resources here:
https://brainly.com/question/24514288
#SPJ9
2Mg+O2 2MGO How many moles of magnesium oxide (mgo) are produced from 600 moles of oxygen (o2)?
Answers
1200 moles of magnesium oxide are produced from 600 moles of oxygen.
To answer your question, we first need to determine the mole ratio between oxygen and magnesium oxide in the balanced chemical equation 2Mg + O2 → 2MgO. The ratio is 1:2, which means that for every 1 mole of oxygen, 2 moles of magnesium oxide are produced.
Using this mole ratio, we can set up a proportion to find out how many moles of magnesium oxide are produced from 600 moles of oxygen:
1 mol O2 / 2 mol MgO = 600 mol O2 / x mol MgO
Cross-multiplying, we get:
1 mol O2 * x mol MgO = 2 mol MgO * 600 mol O2
Simplifying, we get:
x = (2 mol MgO * 600 mol O2) / 1 mol O2
x = 1200 moles of magnesium oxide (MgO)
To know more about magnesium visit :-
https://brainly.com/question/1533548
#SPJ11