Calcium reacts with hydrochloric acid to produce calcium chloride and hydrogen:
Ca (s) + 2HCl (aq) → CaCl2 (aq) + H2 (g)
Calculate the maximum theoretical mass of calcium chloride which can be produced from 40 g of calcium.
Question 2
2.
In the above reaction, only 71 g of calcium chloride were produced. Calculate the percentage yield of the reaction. Give your answer to the nearest percent.
Question 3
3.
Magnesium reacts with oxygen to form magnesium oxide:
2Mg (s) + O2 (g) → 2MgO (s)
What is the maximum mass of magnesium oxide that could be produced from 6 g of magnesium?
Question 4
4.
Lithium reacts with hydrochloric acid to form lithium chloride and hydrogen:
2Li (s) + 2HCl (aq) → 2LiCl (aq) + H2 (g)
What is the maximum mass of lithium chloride which could be produced from 14 g of lithium metal?
Question 5
5.
In the above reaction, 82 g of lithium chloride were produced. Calculate the percentage yield of the reaction. Give your answer to the nearest whole percent.