Mole Questions

What is the mass of 1 mole of carbon?

• 6.02 x 10²³ g
• 12.01 g
• 24 g
• 1 g

How many moles are in 35 grams of chlorine gas (Cl₂)?

• 1 mol
• 2482 mol
• 1225 mol
• 0.5 mol

What is the molar mass of calcium hydroxide?

• 74.1 g/mol
• 57.1 g/mol
• 41.1 g/mol
• 17.0 g/mol

How many molecules are in 9.44 moles of AlCl₃?

• 5.68 molec AlCl₃
• 5.68x10²⁴ molec AlCl₃
• 0.705 molec AlCl₃
• 1.25x10²³ molec AlCl₃

How many particles are in 13.5 grams of Beryllium?

• 1.50 particles

• 9.03 particles

• 4.00x10²³ particles

• 9.03x10²³ particles

How many grams are in 1.2 x 10²⁴ molecules of CO?

• 28 grams

• 56 grams

• 6.0 grams

• 1.2 grams

How many students are there in 31.8 moles of students?

• 5.28 x 10^-23 students
• 1.91 x 10²⁵ students
• 5.28x 10-²⁵  students
• 1.91 x 10²² students

How many formula units are there in 5.5 moles potassium chloride?

• 4.08 x 10^-24 
• 3.31 x 10²⁴ 
• 33.11
• 0.98

How many moles are 2.85 x 10²⁰ atoms of iron?

• 4.73 x 10^-4 moles
• 1.72 x 10⁴ moles
• 1.72 x 10^-42 moles
• 4.73 x 10⁴ moles

Tags

NGSS.HS-PS1-7

How many moles of copper are 4.57 x 10¹⁵ atoms of copper?

• 7.59 x 10^-9 moles
• 2.75 x 10^-33 moles
• 7.59 x 10⁹ moles
• 2.75 x 10³³ moles