7.17 REVIEW WITH QUIZIZZ: QUIZ 7.1: CHM QUANTITIES: 3D 14W S1 23: CHM

Which of the following is NOT true about one mole?

• One mole contains 6.02 x 10⁻²³ particles
• One mole of carbon has a mass of approximately 12 grams
• One mole of carbon atoms has the same mass as one mole of boron atoms
• One mole of carbon contains the same number of atoms as one mole of boron

What tool do you use to find an element's molar mass?

• periodic table
• coefficients
• oxidation numbers

Which conversion factor should be used in the set-up when converting 31.9 g N₂ to moles of N₂?

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Calculate the molar mass of oxygen, O₂.

• 32.00 g/mol
• 16.00 g/mol
• 12.01 g/mol
• 24.02 g/mol

What did the student do wrong with the following set-up for the conversion of 0.306 mol calcium fluoride to grams of calcium fluoride?

• The student calculated the wrong molar mass for calcium fluoride.
• The student did not set-up units so that they would cancel.
• The student has the correct set-up, but calculated incorrectly.
• The student used the wrong formula for calcium fluoride.

A mole connects what other two quantities? Select 𝑡𝑤𝑜 answers.

• number of particles
• grams
• color

Which conversion factor should be used in the set-up when converting 1.15 mol CO₂ to molecules of CO₂ ?

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Convert 5.96 mol mercury to Hg atoms.

• 3.59 x 10²⁴ atoms Hg
• 35.9 atoms Hg
• 9.90 x 10²⁴ atoms Hg
• 6.38 x 10²³ atoms Hg

Convert 4.41 x 10²³ lead atoms to mol Pb.

• 0.732 mol Pb
• 26.6 mol Pb
• 1.75 mol Pb
• 0.0781 mol Pb

What did the student do wrong with the following set-up for the conversion of 4.8 mol copper to atoms of copper?

• The student did not include the " x 10²³ " in their conversion.
• The student did not set-up units so that they would cancel.
• The student used the wrong symbol for copper.
• The student has the correct set-up, but calculated incorrectly.