Mole Practice

What is the molar mass of PbSO₄?

• 303.27 g/mol

• 255.27 g/mol

• 163.87 g/mol

• 372.27 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

• 720 g

• 0.050 g

• 340 g

Tags

NGSS.HS-PS1-7

Determine the mass of 4.20 moles of C₆H₁₂

• 353 g

• 0.0499 g

• 337 g

• 2.53 x 10²⁴ g

How many grams are in 1.2 moles of neon?

• 0.059 grams

• 7.2 x 10²³ grams

• 2.0 x 10^-24 grams

• 24 grams

Tags

NGSS.HS-PS1-7

How many moles are in 98.3 grams of aluminum hydroxide, Al(OH)₃?

• 1.26 moles

• 0.8 moles

• 7,670 moles

• 1.63 x 10^-22 moles

Tags

NGSS.HS-PS1-7

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 moles

Tags

NGSS.HS-PS1-7

• 3.4

• 6.8

• 13.6

• 0.85

The mole unit is ______________.

• a counting unit consisting of 602200000000000000000000 items

• a counting unit containing 6.022 items

• a density unit

• a polarity unit

The are 2 moles of K. How many atoms are there?

Tags

NGSS.HS-PS1-7

1 mole C = 12.01 atoms of C

• True

• False