Molar Conversion Practice

What is the mass of 1 mole of sodium carbonate?

• 99 grams

• 83 grams

• 106 grams

• 122 grams

Which of the following weighs the most?

• 1 mole of ammonia

• 1 mole of methane

• 1 mole of sulfur dioxide

• 1 mole of hydrogen peroxide

How many cm³ are there in 24 dm³?

• 24,000 cm³

• 2,400 cm³

• 240 cm³

• 240,000 cm³

Which of the following contains the greatest number of atoms?

• 10 grams of Helium

• 10 grams of Neon

• 10 grams of oxygen

• 10 grams of nitrogen

When converting from a number of grams to a number of moles, you should use which of the following numbers?

(check as many boxes as you'll need)

• 6.02 x 10²³

• a number calculated using the periodic table

• 24

When converting from the volume to the mass of a gas at RTP, you should use which of the following numbers?

(check as many boxes as you'll need)

• 6.02 x 10²³

• a number calculated using the periodic table

• 24

When converting from a number of atoms to a number of moles, you should use which of the following numbers?

(check as many boxes as you'll need)

• 6.02 x 10²³

• a number calculated using the periodic table

• 24

When converting from a mass to a number of atoms, you should use which of the following numbers?

(check as many boxes as you'll need)

• 6.02 x 10²³

• a number calculated using the periodic table

• 24

What is the mass of 0.64 moles of limestone?

(Just write the number, don't include any units even though you always should on anything you turn in. Also, if the answer is in scientific notation, write it with the carot symbol and no spaces... for example you should write 6.02 x 10²³ as 6.02x10^23.)

How many moles of oxygen does 80 grams of oxygen represent?

(Just write the number, don't include any units even though you always should on anything you turn in. Also, if the answer is in scientific notation, write it with the carot symbol and no spaces... for example you should write 6.02 x 10²³ as 6.02x10^23.)