Molar Conversions Practice Quiz

How many molecules are in 2.5 mol of NaCl?

• 15 sextillion

• 146

• 241 sextillion

• 1505 sextillion

How many molecules of sugar (C₆H₁₂O₆) are in one mole?

• 24 molecules

• 180 molecules

• 180 g molecules

• 602 sextillion molecules

1 mol Ag contain................................. atoms Ag

• 6.023 x 10²³ atoms

• 6.023 x10²⁴ atoms

• 6.023 x 10^-23 atoms

• 6.023 x 10^-24 atoms

How many moles are there in 8428 sextillion molecules of sodium sulfate, Na₂SO₄?

• 1.4 moles

• 14 moles

• 51 moles

• 5.12 x 10⁴⁸ moles

How many water molecules are in 5.2 moles of water?

• 602 sextillion molecules

• 5.2 sextillion molecules

• 3010 sextillion molecules

• 18 sextillion molecules

How many moles are in 450g Potassium chloride? Write a formula first.

• 6.0 g

• 6.0 mol

• 74.6 g/mol

• 33.570 mol

What is the mass of 15 moles of water?

• 0.8 g

• 270 g

• 0.8 mol

• 270 mol

What is the molar mass of PbSO₄

• 303.3 g/mol
• 294.7g/mol
• 163.8g/mol
• 372g/mol

How many moles are in 564 grams of Copper?

• 0.11 mol Cu

• 25 mol Cu

• 87 mol Cu

• 8.87 mol Cu

How many moles is 4 grams of Calcium?

• 0.10 moles

• 10 moles

• 44 moles

• 160 moles