It is the mass of the atoms in atomic mass units (amu)

• Atomic Mass

• Formula Mass

• Molecular Mass

• Molar mass

The sum of the atomic masses of the atoms in a molecule in atomic mass units (amu)

• Atomic Mass

• Formula Mass

• Molecular Mass

• Molar mass

The sum of the atomic masses of the atoms in an ionic compound in atomic mass units (amu)

• Atomic Mass

• Formula Mass

• Molecular Mass

• Molar mass

The mass of 1 mole of atoms, molecules, or formula units in grams per mole (g/mol).

• Atomic Mass

• Formula Mass

• Molecular Mass

• Molar mass

One mole of any entity (particles, atoms, molecules, or formula units) is equal to _________ (particles, atoms, molecules, or formula units).

• 2.9989X10^8

• 6.626x10^-34

• 6.022x10^23

• 1.01x10^5

An element has the following natural abundances and isotopic masses: 90.92% abundance with 19.99 amu, 0.26% abundance with 20.99 amu, and 8.82% abundance with 21.99 amu. Calculate the average atomic mass of this element.

• 2008 amu

• 2017 amu

• 20.08 amu

• 20.17 amu

A 10.00 g sample of a compound containing only carbon, hydrogen, and oxygen forms 23.98 g CO₂ and 4.91 g H₂O upon complete combustion. What is the empirical formula of the compound?

• C₂HO

• C₃H₃O

• C₆H₃O₂

• C₆H₆O

How many H atoms are there in 3.00 grams of H₂?

• 8.96x10²⁴

• 1.79x10²⁴

• 3.58x10²⁴

• 8.96x10²³

How many grams does 6.022x10²⁴ molecules of CO₂ weigh?

• 24.01 grams

• 44.01 grams

• 12.01 grams

• 32.00 grams

How many grams of H atoms are there in 18.02 grams of water?

• 1.008 grams

• 3.024 grams

• 2.016 grams

• 4.032 grams