Molar Conversions

What is the mass of 2.50 mol of oxygen gas O₂?

• 40.0 g
• 80.0 g
• 16.0 g
• 32.0 g

If I have 6.02 x10²³ molecules of CO₂, what is the mass?

• 44.0 g
• 2.65 x10²³ g
• 1.37 x10²² g
• 96.0 g

What is the molar mass of AuCl₃?

• 96 g
• 130 g
• 232.5 g
• 303.3 g

Fluorine is a diatomic element, which means it exists as F₂. What is the molar mass of diatomic fluorine gas?

• 18.998 g/mol

• 37.996 g/mol

• 9 g/mol

• 18 g/mol

How many grams are in 3.3 mol of Potassium Sulfide?

• 363 g

• 454 g

• 238 g

• 132 g

Tags

NGSS.HS-PS1-7

The number 6.022 x 10²³ is called...

• A dozen

• Bohr's number

• Buckley's number

• Avogadro's number

Which has more molecules?

• 1 mole H₂O

• 1 mole CH₄

• 1 mole Cl₂

• They're are all the same.

One mole of sulfur (S) is equal to home many atoms?

• 32 atoms

• 16 atoms

• 1.20 x 10²³ atoms

• 6.022 x 10²³ atoms

What is the mass of one mole of potassium (K)?

• 19 grams

• 39.10 grams

• 30.97 grams

• 38 grams

What is the molar mass of (NH₄)₃PO₄

• 113.02 g/mol

• 124.13 g/mol

• 149.12 g/mol

• 137.00 g/mol