Mass to Mole Conversion Concepts

Question 1: How do you convert grams to moles?

• Divide the given mass by the molar mass of the substance

• Subtract the given mass from the molar mass of the substance

• Multiply the given mass by the molar mass of the substance

• Add the given mass to the molar mass of the substance

Question 2: What is the formula for converting moles to particles?

• Multiplying moles by Planck's constant

• Adding moles to Avogadro's number

• Dividing moles by Avogadro's number

• Avogadro's number (6.022 x 10^23) multiplied by the number of moles

Question 3: What is Avogadro's number?

• 8.674 x 10^12

• 6.022 x 10^23

• 3.1416

• 5.55 x 10^18

Question 4: If you have 25 grams of a substance, how many moles is that?

• Cannot be determined

• 50 moles

• 2.5 moles

• 10 moles

Question 5: How many particles are in 2 moles of a substance?

• 4.2044 x 10^24 particles

• 2 x 10^24 particles

• 1.2044 x 10^24 particles

• 6.022 x 10^23 particles

Question 6: What is the molar mass of carbon?

• 12.01 g/mol

• 6.94 g/mol

• 24.31 g/mol

• 16.00 g/mol

Question 7: If you have 0.5 moles of a substance, how many grams is that?

• 50 grams

• 0.5 grams

• 0.05 grams

• Cannot be determined

Question 8: How many moles are in 3.01 x 10^23 particles of a substance?

• 3 moles

• 2 moles

• 1 mole

• 0.5 moles

Tags

NGSS.HS-PS1-7

Question 9: What is the relationship between moles and Avogadro's number?

• Avogadro's number is the number of particles in a gram of substance

• Avogadro's number is the number of particles in a mole of substance

• Avogadro's number is the number of particles in a liter of a substance

• Moles and Avogadro's number are not related.

Tags

NGSS.HS-PS1-7

Question 10: Why is mass to mole conversion important in chemistry?

• To relate the amount of substance in moles to the number of atoms or molecules

• To relate the amount of substance in grams to the number of particles in moles

• To measure the volume of a substance

• To calculate the density of a material

Tags

NGSS.HS-PS1-7