Moles, Grams, Atoms

Find the number of moles in 25 grams of HF?

• 1.25 mol HF
• 25 mol HF
• 0.8 mol HF
• 80 mol HF

How many moles are in 564 grams of Copper?

• 0.11 mol Cu
• 25 mol  CU
• 87 mol Copper
• 8.87mol Cu

How many grams is 1.2 moles of Neon?

• 0.05 grams
• 16.6 grams
• 21.2 grams
• 24 grams

How many moles is 4 grams of Calcium?

• 0.10 moles
• 10 moles
• 44 moles
• 160 moles

Tags

NGSS.HS-PS1-7

Find the number of moles in 25 grams of HF?

• 1.25 mol HF
• 25 mol HF
• 0.8 mol HF
• 80 mol HF

The number 6.02 x 10²³ is called...

• Obama's number
• Bohr's number
• Trump's number
• Avogadro's number

Tags

NGSS.HS-PS1-7

what is the molar mass of C₆H₁₂O₆

• 154.0 g/mol

• 178.0 g/mol

• 180.0 g/mol

• 192.0 g/mol

How many moles are in 16.9g of water?

• 16.9 mol H₂O

• 305. mol H₂O

• .938 mol H₂O

• 1.06 mol H₂O

The mass of one mole of NaCl is?

• 58.5 amu
• 23 amu
• 23 g
• 58.5 g

the molar mass of O₂ is

• 32 g

• 32 g/mol

• 32 amu

• 32 mol