Molar Conversions

What is the mass in grams of 6.25 mol of copper (II) nitrate?

• 126 g
• 785 g
• 625 g
• 1172 g

Tags

NGSS.HS-PS1-7

How many molecules are in 32.4 grams of phosphorous pentoxide?

• 1.76 x 10²³ molecules
• 0.29 moles
• 1.76 x 10²² molecules
• 0.29 molecules

Tags

NGSS.HS-PS1-7

0.50 moles of carbon is equal to how many grams?

• 6.0
• 12.0
• 8.0
• 14.0

5.11x10²³ atoms of lithium is equal to how many moles?

• 1.18
• 0.351
• 1.34
• 0.849

Tags

NGSS.HS-PS1-7

How many grams are in 1.2 x 10²⁴ atoms of C?

• 28 grams
• 24 grams
• 6.02 grams
• 1.2 grams

Tags

NGSS.HS-PS1-7

What is the molar mass of B₂(CO₃)₃?

• 81.632 g/mol
• 94.842 g/mol
• 38.822 g/mol
• 201.648 g/mol

0.75 mole of copper (Cu) is equal to how many atoms?

• 8.03 x 10²³ atoms

• 6.02 x 10²³ atoms

• 4.52 x 10²³ atoms

• 3.11 x 10²³ atoms

How many atoms would be contained in 454 grams of iron (Fe)?

• 6.02 x 10²³ atoms

• 8.14 atoms

• 4.90 x 10²⁴ atoms

• 55.85 x 10²³ atoms

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

What is the mass of 6.25x10²³ molecules of Cu(NO₃)₂?

• 126 g

• 785 g

• 625 g

• 195 g

Tags

NGSS.HS-PS1-7