Chemistry - QUIZ - mole conversions

What are the units for molar mass?

• grams

• amu

• grams/mole

• liters

Tags

NGSS.HS-PS1-7

The molar mass of an element is equal to its...

• Atomic mass

• Atomic number

• Oxidation number

• Valence electrons

Tags

NGSS.HS-PS1-7

Calculate the molar mass of gold III chloride

• 96 g

• 130 g

• 232.5 g

• 303.3 g

What is the molar mass of strontium nitrate?

• 211.64 g/mol

• 163.64 g/mol

• 149.63 g/mol

• 197.63 g/mol

Which would have more atoms?

• 1 mole of lithium

• 1 mole of gold

• 1 mole of silicon

• None, all are equal

What is the mass of 0.89 mol of calcium chloride?

• 111 grams

• 0.008 grams

• 98.9 grams

• none of the choices

How many moles are in 100.0 g of dinitrogen oxide?

• 2.272 mol N₂O

• 6.25 mol N₂O

• 7.14 mol N₂O

• 44.013 mol N₂O

How many g of calcium carbonate are present in a sample if there are 4.52 x 10²⁴ atoms of carbon in that sample?

• 100 g CaCO₃
• 7.51 g CaCO₃
• 90.2 g CaCO₃
• 751 g CaCO₃

Tags

NGSS.HS-PS1-7

How many atoms are in a 3.56 g sample of copper?

• 3.37 x 10²² Cu atoms
• 6.02 x 10²³ Cu atoms
• 0.056 Cu atoms
• 1 Cu atom

How many grams are in 1.2 x 10²⁴ molecules of carbon monoxide?

• 28 grams
• 56 grams
• 6.02 grams
• 1.2 grams

Tags

NGSS.HS-PS1-7