Mole Quiz

What is the molar mass of fluorine gas, F₂?

• 18.99 g/mol

• 38.00 g/mol

• 9.00 g/mol

• 18.00 g/mol

What is the molar mass of table salt (NaCl)?

• 116.89 g/mol

• 35.45 g/mol

• 22.99 g/mol

• 58.44 g/mol

What is the molar mass of CO₂?

• 12
• 16
• 32
• 44

Calculate the molar mass of KOH.

• 28.00 g/mol

• 56.11 g/mol

• 84.02 g/mol

• 112.10 g/mol

Calculate the molar mass for Al(OH)₃

• 78.01 g/mol

• 72.03 g/mol

• 28.00 g/mol

• 25.05 g/mol

Shivani measures out 6.0 moles of epsom salt (MgSO₄) to put in her bath. How many grams of MgSO₄ went in the bath?

• 3.6 x 10²⁴ g

• 722.08 g

• 0.050 g

• 340.00 g

How many molecules are there in 31.8 moles of water?

• 5.28 x 10^-23 molecules
• 1.91 x 10²⁵ molecules
• 5.28x 10²⁵ molecules

• 1.91 x 10²² molecules

Determine the mass of 4.20 moles of C₆H₁₂

• 353.56 g

• 0.0499 g

• 337.56 g

• 2.53 x 10²⁴ g

To melt the ice, Juan throws 455 g of calcium chloride, CaCl₂ on his sidewalk. How many moles of CaCl₂ did he throw?

• 50,500 moles

• 4.10 moles

• 7.56 x 10^-22 moles

• 111.00 moles

How many moles does 65 L of CO2 gas contain?

• 2.9 Moles CO₂

• 29 Moles CO₂

• 1.9 Moles CO₂

• 39 Moles CO₂