Question 1

Molarity is defined as the _____.

Accepted Answer

amount of solute per liter of solution

Answer

ratio of one substance with the mass of the total mixture

Answer

mass of a constituent divided by the volume of the mixture

Answer

amount of a constituent divided by the total amount of all constituents in a mixture

Question 2

Which of the following is true about the actual yield of a product?

Accepted Answer

It is almost always less than the theoretical yield.

Answer

It is always greater than the theoretical yield.

Answer

It is obtained from a stoichiometry calculation.

Answer

It is always equal to the theoretical yield of the reaction.

Question 3

The percent yield of a chemical reaction is calculated by dividing the actual yield by the perfect yield and multiplying by 100%.

Accepted Answer

false

Answer

true

Question 4

What is the expression for K_c for the following equilibrium?

CaSO₃(s) <-->CaO(s) + SO₂(g)

Accepted Answer

Answer

[SO2]/[CaSO3]

Answer

[SO2][CaO]/[CaSO3]

Answer

[CaSO3]/[SO2][CaO]

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