Stoichiometry

What is the molar mass of PbSO₄

• 303.3 g/mol
• 294.7g/mol
• 163.8g/mol
• 372g/mol

What is the molar mass of NaBr

• 381.9g/mol
• 102.9 g/mol
• 213.6g/mol
• 93.0g/mol

What is the molar mass of (NH₄)₂S

• 219.8g/mol
• 78.0g/mol
• 68.1 g/mol
• 52.9g/mol

36.0 g of Be contains how many moles?

• 0.25 mol
• 4.0 mol
• 45 mol
• 320 mol

How many moles are in 2.3 grams of phosphorus?

• 0.07 moles
• 71.3 moles
• 13.5 moles
• 20 moles

How many moles are in 2.3 grams of phosphorus?

• 0.07 moles
• 71.3 moles
• 13.5 moles
• 20 moles

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

• 1.26 moles
• 0.8 moles
• 7,673.4 moles
• 150 moles

Tags

NGSS.HS-PS1-7

How many moles are in 68 grams of copper (II) hydroxide, Cu(OH)₂?

• 1.4 moles
• 0.7 moles
• 6,630 moles
• 50 moles

Tags

NGSS.HS-PS1-7

How many grams are in 0.02 moles of beryllium iodide, BeI₂?

• 13,150 g
• 0.0007 g
• 5.3 g
• 50 g

Tags

NGSS.HS-PS1-7

How many grams are in 4.5 moles of sodium fluoride, NaF?

• 0.1 g
• 9.3 g
• 100 g
• 189 g