Chemical Yields

Question 1

2.583 grams of magnesium and 46.1 grams of nitrogen react to form magnesium nitride.

Which reactant is the limiting reactant?

Answer 1

magnesium; it can only produce 0.0 - 0.1 moles of product

Question 2

2.583 grams of magnesium and 46.1 grams of nitrogen react to form magnesium nitride.

What is the theoretical yield of magnesium nitride, in grams?

Select the range that includes the correct value.

Answer 2

3 to 4 g

Question 3

2.583 grams of magnesium and 46.1 grams of nitrogen react to form 3.148 grams of magnesium nitride.

What is the percent yield of magnesium nitride?

Select the range that includes the correct value.

Answer 3

80 - 90%

Question 4

0.505 grams of hydrogen sulfide and 66.0 grams of nickel (II) sulfate react to form nickel (II) sulfide and hydrogen sulfate.

Which reactant is the limiting reactant?

Answer 4

hydrogen sulfide; it can only produce 0.0 - 0.1 moles of nickel (II) sulfide

Question 5

0.505 grams of hydrogen sulfide and 66.0 grams of nickel (II) sulfate react to form nickel (II) sulfide and hydrogen sulfate.

What is the theoretical yield of nickel (II) sulfide, in grams?

Select the range that includes the correct value.

Answer 5

1 to 2 g

Question 6

0.505 grams of hydrogen sulfide and 66.0 grams of nickel (II) sulfate react to form 0.426 grams of nickel (II) sulfide. Hydrogen sulfate is also produced.

What is the percent yield of nickel (II) sulfide?

Select the range that includes the correct value.

Answer 6

30 - 40%