Final Quiz 4-Stoichiometry, Limiting Reactants & % Yield

N₂ + 3H₂ --> 2NH₃

How many moles of N₂ is needed to react with 6 moles of H₂?

• 6

• 2

• 3

• 15

H₂+Cl₂-->2HCl
How many moles of Cl₂ is needed to react with 3 moles of H₂?

• 5
• 2
• 3
• 6

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NGSS.HS-PS1-7

How many moles are in 19.82 g Mg?

SHOW YOUR DIMENSIONAL ANALYSIS

• 1.226mol Mg

• 481.7mol Mg

• 1.000mol Mg

• 0.8156 mol Mg

How many grams are equal to 0.11 mole of copper (I) chromate, Cu₂(CrO₄)?

SHOW YOUR DIMENSIONAL ANALYSIS

• 26.74 g

• 19.75 g

• 39.50 g

• 13.69 g

True/False: Before you begin, you must be sure your equation is balanced

• True

• False

Tags

NGSS.HS-PS1-7

How many moles are in 16.94 g of water?

SHOW YOUR DIMENSIONAL ANALYSIS

How many moles are in 1459 grams of Na?

SHOW YOUR DIMENSIONAL ANALYSIS

A can of Coke has 39g of sugar. The formula for table sugar is C₁₂H₂₂O₁₁. How many moles of sugar is in a can of Coke?

SHOW YOUR DIMENSIONAL ANALYSIS

• 0.414 mol

• 0.314 mol

• 0.214 mol

• 0.114 mol

How many atoms of iodine are in a mole of iodine?

• 53
• 63.55g
• 126.9
• 6.02 x 10²³

We use the periodic table to calculate...

• mass
• molar mass
• moles

Tags

NGSS.HS-PS1-7