Inorganic Chemistry Answers

If 10.00 g of magnesium is reacted with 95.75 g of copper (II) sulphate, magnesium sulphate and copper are formed.



a. Which reactant is in excess?
b. Calculate the mass of copper formed.

Zinc reacts with hydrochloric acid based on the following equation:


If 150 g of Zn reacts with 73 g of HCl:

a. Which reactant is the limiting reagent?
b. What mass of ZnCl2 would be produced?

The thermite reaction has been used to weld railroad rails, make bombs, and ignite solid rocket fuel. The equation of the reaction is:



a.) What is the theoretical yield of iron if 100.0 g of Fe2O3 is used?

b.) What is the percentage yield if 52.3 g of iron is actually produced?

Powdered zinc metal reacts with sulphur (S8) when heated to produce zinc sulphide.



a. )What mass of product can be produced with 25 g of zinc?

b.) What is the actual yield if the percentage yield was 80%?

When 9.0 g of hydrogen gas, H2, reacts with oxygen gas, O2, 73.0 g of water is produced.

a.) What is the theoretical yield of water?

b.) What is the percentage yield?

Explain the steps you would follow to make 500 mL of a 0.5 mol/L solution of sodium chloride (NaCl) in the lab.

What volume of a 6.0 M NaOH solution is needed to produce 3.0 L of a 0.1 M solution?

A 100 mL sample of a 6.0 mol/L solution of H2SO4 is diluted to a final volume of 500 mL. What is the concentration of the diluted solution?

What volume of 1.0 mol/L solution of CuS can be made from 23.9 g of CuS?

What is the molar concentration of a solution containing 10.0 g of NaOH in 250 mL of solution?