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TGS - Percentage Yield Part 2 - JBI

Last updated about 5 years ago

5 questions

1

Question 1

1.

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.

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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.