Which has more molecules?

• 1 mole H₂O

• 1 mole CH₄

• 1 mole Cl₂

• They're are all the same.

One mole of sulfur (S) is equal to home many atoms?

• 32 atoms

• 16 atoms

• 1.20 x 10²³ atoms

• 6.02 x 10²³ atoms

5.11 x 10²³ atoms of lithium (Li) is equal to how many moles?

• 1.18 moles

• 0.351 moles

• 1.34 moles

• 0.849 moles

Tags

NGSS.HS-PS1-7

Which conversion factor would you use to calculate correctly the mass of 2 moles of the element titanium?

• 47.86 g Ti / 1 mol Ti

• 1 mol Ti / 47.84 g Ti

• 47.84 mol / 1 g Ti

• 47.87 g Ti / 1 mol Ti

Find the mass in grams of 2.25 x 10²⁴ atoms of calcium.

• 40.0 grams

• 255.1 grams

• 150 grams

• 9.02 x 10²⁴ grams

Tags

NGSS.HS-PS1-7

What is the molar mass of gold(III)chloride?

• 96.00 g/mol

• 130.00 g/mol

• 232.51 g/mol

• 303.32 g/mol

If I have 6.02 x10²³ molecules of CO₂, what is the mass?

• 44.0 g
• 2.65 x10²³ g
• 1.37 x10²² g
• 96.0 g

Tags

NGSS.HS-PS1-7

What is the molar mass of fluorine gas?

• 19.00 g/mol

• 38.00 g/mol

• 9 g/mol

• 18 g/mol

Molar mass is in units of ________.

• grams
• grams/mole
• mole
• moles/gram

Tags

NGSS.HS-PS1-7

Which compound has the smallest molar mass?

• CO

• CO₂

• H₂O

• H₂O₂