How does a scientist make two solutions with the same molarity? A By dissolving the maximum amount of each substance in the B. By dissolving the same number of grams of each substance in the OC. By dissolving 1 mole of each substance in enough water to make same volume of water same volume of water sure dissolving is complete By dissolving the same number of nmoles of each substance in the same volume of water OD.​

The value of K is 4.4 represents the equilibrium position of the reaction under the given conditions.

The equilibrium constant (K) for a reaction is a constant value that relates the concentrations of the reactants and products at equilibrium. For the given reaction, the equilibrium concentrations of SO₂, O₂, and SO₃ are given as [SO₂] = 1.50 M, [O₂] = 1.25 M, and [SO₃] = 3.50 M, respectively.

The equilibrium constant (K) for the reaction can be calculated using the equilibrium concentrations of the reactants and products.

K = [SO₃]²/([SO₂]²[O₂])

K = (3.50)²/[(1.50)²(1.25)]

K = 4.48

Therefore, the equilibrium constant (K) for the reaction is 4.48.

To know more about the Balancing equations, here

https://brainly.com/question/7181548

#SPJ1

Answer:

synthetic material is material made by humans through chemical synthesis and natural substances. Natural materials come from the natural environment, and have been changed very little. A synthetic material is a material that is obtained from a natural material which has undergone a chemical reaction in a laboratory or factory. Both natural and synthetic materials are found in products you use every day.

Explanation:

The energy in joules of a photon that has a frequency of 7.49 × 10¹⁴ s⁻¹ is 4.963 × 10-²¹ J.

The energy of a photon or light wave can be calculated using the following formula:

E = hf

Where;

According to this question, the frequency a photon is given as 7.49 × 10¹⁴ s⁻¹ where the Planck's constant (h) is 6.626 × 10⁻³⁴ J • s. The energy can be calculated as follows:

E = 7.49 × 10¹⁴ × 6.626 × 10⁻³⁴

E = 4.963 × 10-²¹ J

Therefore, the energy in joules of a photon that has a frequency of 7.49 × 10¹⁴ s⁻¹ is 4.963 × 10-²¹ J.

Learn more about energy of a photon at: https://brainly.com/question/2393994

#SPJ1

The species that are responsible for the peaks near the wavelength are allura red and tartrazine.

It should be noted that wavelength simply means the distance between the identical points in the adjacent cycles of a waveform.

In this case, the chemical species is responsible for the peaks near each wavelengths include allura red and tartrazine.

It should be noted that allura red is used as a food dye and supplied as red sodium salt. Also, tartrazine is used as a food coloring agent.

Learn more about wavelength on:

https://brainly.com/question/10728818

kAnswer:

Explanation:

The mass (in grams) of chlorine gas is needed to react with 251 grams of iron is 479 grams. Option C.

To determine the mass of chlorine gas needed to react with 251 grams of iron, we need to use the stoichiometry of the balanced chemical equation:

2Fe + 3Cl2 → 2FeCl3

From the balanced equation, we can see that 2 moles of iron (Fe) react with 3 moles of chlorine gas (Cl2) to produce 2 moles of iron(III) chloride (FeCl3).

To calculate the mass of chlorine gas, we can follow these steps:

Step 1: Convert the given mass of iron (Fe) to moles.

Using the molar mass of iron (Fe), which is approximately 55.85 g/mol, we can calculate the number of moles of iron:

moles of Fe = mass of Fe / molar mass of Fe

moles of Fe = 251 g / 55.85 g/mol

moles of Fe ≈ 4.5 mol (rounded to one decimal place)

Step 2: Use the mole ratio from the balanced equation to find the moles of chlorine gas (Cl2) needed.

From the balanced equation, we know that 2 moles of Fe react with 3 moles of Cl2. Therefore, the moles of Cl2 can be calculated as:

moles of Cl2 = (moles of Fe / 2) * 3

moles of Cl2 = (4.5 mol / 2) * 3

moles of Cl2 ≈ 6.75 mol (rounded to two decimal places)

Step 3: Convert the moles of chlorine gas to grams.

Using the molar mass of chlorine gas (Cl2), which is approximately 70.90 g/mol, we can calculate the mass of chlorine gas:

mass of Cl2 = moles of Cl2 * molar mass of Cl2

mass of Cl2 = 6.75 mol * 70.90 g/mol

mass of Cl2 ≈ 479 grams (rounded to the nearest whole number) Option C is correct.

For more such question on mass. visit :

https://brainly.com/question/19385703

#SPJ8

The volume of oxygen produced in the decomposition of 5 moles of KCIO3 at STP is 168 L. The balanced chemical equation for the decomposition of KCIO3 is:

2KClO3(s) → 2KCl(s) + 3O2(g)

From the equation, we can see that for every 2 moles of KCIO3, 3 moles of O2 are produced. Therefore, for 5 moles of KCIO3, the number of moles of O2 produced can be calculated as follows:

5 moles KCIO3 x (3 moles O2/2 moles KCIO3) = 7.5 moles O2

Since the conditions are given as STP (standard temperature and pressure), we can use the molar volume of a gas at STP (22.4 L/mol) to calculate the volume of O2 produced:

7.5 moles O2 x 22.4 L/mol = 168 L O2

To know more about molar volume, visit:

https://brainly.com/question/29884686

#SPJ1

Answer:

A= Metallic

B= Conducts electricity as a solid

C= Covalent

D=Does not conduct electricity

Explanation:

Answer:

See explanation.

Explanation:

Hello there!

In this case, considering the given information, it is not possible to figure out such order of reaction with respect to water as it is not involved in the given chemical reaction:

2E(g)+ F(g)+O(g)_

However, we can say that the order of reaction is 2 with respect to E (power of 2 in the rate law), 1 with respect to F (power of 1 in the rate law) and 0 with respect to O (power of 0 or not present in the rate law).

Regards!

The vapor pressure is obtained as 3.7 atm.

The Clausius-Clapeyron equation is the equation that we could use to obtain the vapor pressure of a solution at any temperature. Of course we would always have two different temperatures to work with.

Hence;

ln(P1/P2) = ΔHvap/R (1/T2 - 1/T1)

P1 = initial pressure

P2 = final pressure

ΔHvap =  enthalpy of vaporization

T2 = final temperature

T1 = initial temperature

ln(1/P2) = 35.2 * 10^3/8.314 (1/338 - 1/307)

ln(1/P2) = 4234(0.00295 - 0.00326)

ln(1/P2) = -1.31

1/P2 = e^-1.31

P2 = 1/e^-1.31

P2 = 3.7 atm

Learn more about Clausius-Clapeyron equation:https://brainly.com/question/13162576

#SPJ1

Braxtons dog eats 3 times more than Abbys

Answer:

Braxton's dog eats 3 times more food.

Explanation:

Answer:

the molar mass of the gas is approximately 0.956 g/mol

Answer:

Bases don't react with metals the way that acids do. Bases react with acids to produce a salt and water.

Answer:
we need 0.528 moles of Fe2(SO4)2 to react with 123.5 g of NaCl.

Explanation:

To solve this problem, we need to first write the balanced chemical equation for the reaction between Fe2(SO4)2 and NaCl:

Fe2(SO4)2 + 4NaCl → 2FeCl2 + Na2SO4

From this equation, we can see that 1 mole of Fe2(SO4)2 reacts with 4 moles of NaCl.

Next, we need to calculate the number of moles of NaCl that we have, using the formula:

moles = mass / molar mass

The molar mass of NaCl is:

1 Na atom = 22.99 g/mol

1 Cl atom = 35.45 g/mol

So, the molar mass of NaCl is:

22.99 + 35.45 = 58.44 g/mol

Using the formula, we have:

moles of NaCl = 123.5 g / 58.44 g/mol

moles of NaCl = 2.113 mol

Now, we can use the mole ratio between Fe2(SO4)2 and NaCl to calculate the number of moles of Fe2(SO4)2 needed:

moles of Fe2(SO4)2 = moles of NaCl / 4

moles of Fe2(SO4)2 = 2.113 mol / 4

moles of Fe2(SO4)2 = 0.528 mol

Answer:c

Explanation:c

The moles of boron in 1.51× 10²⁴ atoms are 2.3082 moles of boron.

The mole is a SI unit of measurement that is used to calculate the quantity of any substance.

Boron is a chemical element that has the symbol of B. It is oh gray color and its hard, shiny and crystal form. It forms many important compounds like boric acid, borax, etc.

Atoms are the basic unit of matter. All matter and elements are formed by atoms. They are spherical shaped and made up of charged subatomic particles.

6.022 x 10²³ is Avogadro's number, and it is similar to 1 mole of any substance.

1 mole of B contains 6.022 x 10²³ B atoms

Thus, 1.39 x 10²⁴ B atoms are present in

(1.39 x 10²⁴ ) /( 6.022 x 10²³) =  2.3082 moles of B.

Thus, the moles of boron is 2.3082 moles of B.

To learn more about moles, refer to the link:

https://brainly.com/question/26416088

#SPJ2

Answer:

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

From the question

density = 0.5 g/cm³

1 mL = 1 cm³

5 mL = 5 cm³

volume = 5 cm³

The mass is

mass = 0.5 × 5

We have the final answer as

Hope this helps you

Answer:

Hi! I believe this is your answer:

52 kilograms

Hope this helps, sorry if it's wrong!

Explanation:

The relative atomic mass of Boron in trimethyl borate [(CH3O)3B] is; 10.8

According to the question;

The relative abundance of Boron in the spectrum is;

Relative atomic mass = (80% of 11) + (20% of 10)

Hence, the relative atomic mass of Boron in trimethyl borate [(CH3O)3B] is; 10.8

Read more on Isotopes;

https://brainly.com/question/14220416

In Atlanta, GA, certain seasons are associated with poorer air quality due to various factors such as weather conditions, human activities, and geographical location.

Typically, the seasons with the worst AQI in Atlanta, GA, are summer and early fall. This is primarily due to the combination of high temperatures, stagnant air masses, and increased pollution from various sources.

During the summer months, Atlanta experiences hot and humid weather, which can contribute to the formation of ground-level ozone. Ozone is a harmful pollutant that is created when pollutants from vehicles, power plants, and industrial activities react with sunlight and heat. High levels of ozone can cause respiratory issues and other health problems.

In addition to ozone, Atlanta also experiences increased levels of particulate matter (PM) during the summer and early fall. PM refers to tiny particles suspended in the air, which can come from sources such as vehicle exhaust, industrial emissions, and wildfires.

These particles can be inhaled into the lungs and can have detrimental effects on respiratory health.

It's important to note that air quality can vary from year to year and is influenced by various factors. Local regulations, weather patterns, and changes in pollutant emissions can all impact the AQI during different seasons.

Monitoring air quality reports and taking necessary precautions such as reducing outdoor activities during times of poor air quality can help individuals stay informed and protect their health.

For more such question on air quality visit:

https://brainly.com/question/21173066

#SPJ8

Answer:Yes

Explanation:

Because Chinstrap penguins eat krills

Answer:

Things that have the same charge push each other away (they repel each other). This is called the Law of Charges. ... Things that have more electrons than protons are negatively charged, while things with fewer electrons than protons are positively charged. Things with the same charge repel each other.

Explanation:

The number of atoms of each element :

C : 1 atom

H : 3 atoms

Br = 1 atom

Given

Bromomethane-CH₃Br

Required

The number of atoms

Solution

The empirical formula is the smallest comparison of atoms of compound forming elements.  

A molecular formula is a formula that shows the number of atomic elements that make up a compound.  

The number of atoms in a compound is generally indicated as a subscript after the atom

C : 1 atom

H : 3 atoms

Br = 1 atom

Total 5 atoms

The boiling point of water is 100.0 °C, the boiling point of the solution will be : 101.49 °C.The correct answer is option (a) 100.00049 °C.

Ideal Solution : An ideal solution is a homogeneous mixture of two or more components that obeys Raoult's law, which states that each component's vapor pressure is proportional to its mole fraction.The boiling point of a solution depends on the solvent's properties and the solute's concentration. It's dependent on the mole fraction of the solvent and solute, as well as the total concentration of the solution. The change in boiling point of a solution is given byΔTb = Kb × m × i, whereKb = ebullioscopic constant, m molarity of the solution, and i = van't Hoff factor.Assuming that the solution's behavior is ideal, we may use the molality of the solution to compute the boiling point elevation of the solution.The molality of the solution is given by the following formula:m = (n₂ / m₂) ÷ (n₁ / m₁), where n is the number of moles, m is the mass, and the subscripts 1 and 2 refer to water and non-volatile solute sucrose, respectively.The molar mass of sucrose (C₁₂H₂₂O₁₁) is342.3 g/mol; therefore, the number of moles of sucrose is115.0 g ÷ 342.3 g/mol = 0.335 mol.m₁ = mass of water = 350.0 g, and m₂ = mass of sucrose = 115.0 g, as given in the problem.Therefore, the molality of the solution is given by:m = (0.335 mol / 0.115 kg) ÷ (1 mol / 1 kg) = 2.91 mol/kg.Substituting these values in the formula for ΔTb, we get:ΔTb = Kb × m = 0.512 °C m⁻¹ × 2.91 mol/kg = 1.49 °C.100.0 °C + 1.49 °C = 101.49 °C.

for such more questions on solution

https://brainly.com/question/25326161

#SPJ8

Ammonia (\(NH_3\)) and ammonium chloride (\(NH_4Cl\)) mixture could be a useful buffer in a solution. Option C

A buffer is a solution that can resist changes in pH when small amounts of acid or base are added. It consists of a weak acid and its conjugate base or a weak base and its conjugate acid. The buffer system works by the principle of Le Chatelier's principle, where the equilibrium is shifted to counteract the changes caused by the addition of an acid or a base.

In option A, acetic acid (\(CH_3CO_2H\)) is a weak acid, but hydrochloric acid (HCl) is a strong acid. This combination does not form a buffer because HCl is completely dissociated in water and cannot provide a significant concentration of its conjugate base.

Option B consists of sodium hydroxide (NaOH), which is a strong base, and elemental sodium (Na), which is a metal. This combination does not form a buffer as there is no weak acid-base pair involved.

Option D contains acetic acid (\(CH_3CO_2H\)), a weak acid, and ammonia (\(NH_3\)), a weak base. Although they are weak acid and base, they do not form a buffer system together as they are both weak acids or bases and lack the required conjugate acid-base pair.

Option C, ammonia (\(NH_3\)), is a weak base, and ammonium chloride (\(NH_4Cl\)) is its conjugate acid. This combination can form a buffer system. When ammonia reacts with water, it forms ammonium ions (NH4+) and hydroxide ions (OH-).

The ammonium ions act as the weak acid, while the ammonia acts as the weak base. The addition of a small amount of acid will be counteracted by the ammonium ions, and the addition of a small amount of base will be counteracted by the ammonia, thus maintaining the pH of the solution relatively stable.

Therefore, option C, consisting of ammonia (\(NH_3\)) and ammonium chloride (\(NH_4Cl\)), is the suitable mixture that could be a useful buffer in a solution.

For more such question on buffer visit:

https://brainly.com/question/13076037

#SPJ8

Answer:

T = 308.57 K

Explanation:

Given data:

Number of moles of K = 0.335 mol

Volume of vessel = 2.00 L

Pressure in vessel = 4.32 bar

R = 0.08314 L.bar /mol.K

Temperature of K = ?

Solution:

Formula:

PV = nRT

T = PV/nR

By putting values,

T = 4.32 bar ×2.00 L /0.335 mol× 0.08314 L.bar /mol.K

T = 8.64 bar.L / 0.028 L.bar /K

T = 308.57 K

Answer:

digestive system, stomach, stomach lining, then the other one

Explanation: