MOLE CONVERSION 2

How many moles are in 19.82 g Mg? 

• 1.226mol Mg
• 481.7mol Mg
• 1.000mol Mg
•  0.8156 mol Mg

Which of the following dimensional analysis setups will correctly convert 4.00x10²³atoms of cobalt to moles of cobalt? How many moles of colbalt are there?

• setup B : 0.6644mol Co
• setup A: 2.41x10⁴⁷mol Co
• setup A : 0.664mol Co
• setup B: 2.41x10⁴⁷mol Co

How many water molecules are in 5.2 moles of water?

• 6.02 x 10²³
• 5.2
• 3.1 x 10²⁴
• 8.638 x 10^-24

Tags

NGSS.HS-PS1-7

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

• 196.967 g
• 626.354 g
• 232.42 g
• 303.326 g

What is the mass in grams of 5.90 mol C₈H_18?

• .0512 g
• 19.4 g
• 673 g
• 389 g

Tags

NGSS.HS-PS1-7

A container with a volume of 893 L contains how many moles of air at STP?

• 20003.2 L
• 39.9 mole
• 22.4 L
• none of the choices

Which conversion factor should be used to solve the following, "How many moles in 28 grams of CO₂?"

• 1 mol = 22.4 L 
• 1 mol = 44.01 g
• 1 mol = 6.02x10²³ atoms
• more than one

Which conversion factor should be used to solve the following, "Find the mass in grams of 2.00 x 10²³ molecules of F₂."

• 1 mol = 22.4 L 
• 1 mol = 38.00 g
• 1 mol = 6.02x10²³ atoms
• more than one

Tags

NGSS.HS-PS1-7

Which represents the greatest mass of sulfur?

• 1 gram of sulfur
• 1 molecule of sulfur
• 0.5 mole of sulfur
• 6.02 x 10²³ atoms of sulfur

Which of the following would have the highest number of moles?

• 4g CO₂
• 15g H₂O
• 22g NaCl
• 100g AgCl