Stoichiometry

How many steps will it take me to go from grams to grams?

• 4

• 3

• 2

• 1

9. Complete the equation for the percent yield of a chemical reaction:
Percent yield=(________)÷(________)×100%

• actual yield; theoretical yield
• theoretical yield; actual yield

How many step will it take for me to go from grams to moles unknown

• 1

• 2

• 3

• 4

N₂ +  3H₂ → 2NH₃ 
How many moles of hydrogen are needed to react with 2 moles of nitrogen?

• 6 mol H

• 2 mol H

• 3 mol H

• 1 mol H

Complete the equation for the percent yield of a chemical reaction:

Percent yield=(________)÷(________)×100%

• actual yield; theoretical yield

• theoretical yield; actual yield

How many step will it take for me to go from moles given to moles unknown?

• 1

• 2

• 3

• 4

What is the molar mass of C₆H₁₂O₆?

• 180.18 g/mol

• 180.12 g/mol

• 180.24 g/mol

• 180.06 g/mol

Using the following equation:
4NH₃(g) + 5O₂(g) --> 4NO(g) + 6H₂O(l)
How many grams of oxygen gas are needed to react with 56.8 grams of ammonia?

• 45.08 g O₂
• 133.33 g O₂
• 260.77 g O₂
• 75.92 g O₂

Using the following equation:
Fe₂O₃(s) + 3H₂(g) → 2Fe(s) + 3H₂O(l)
How many moles of iron can be made from 3 moles of Fe₂O₃?

• 6 moles Fe
• 4 moles Fe
• 2 moles Fe
• 1 moles Fe

In a chemical reaction, the mass of reactants ___.

• is less than the mass of products

• is greater than the mass of products

• has no relationship to the mass of products

• is equal to the mass of products