The mole-3.3,7.3,7.4

What is the molar mass of AuCl₃?

• 96.00 g

• 130.45 g

• 232.51 g

• 303.32 g

• None of these is correct

How many moles are present in 32.3 grams of carbon dioxide (CO₂)?

• 44.01 moles

• 1421.52 moles

• 32.3 moles

• 0.73 moles

• None of these is correct

What is the mass in grams of 5.90 mol C₈H_18?

• .0512 g

• 19.4 g

• 673 g

• 389 g

• None of these is correct

How many water molecules are in 5.2 moles of water?

• 6.02 x 10²³

• 5.2

• 3.1304 x 10²⁴

• 1.74 x 10²³

• None of these is correct

The mass of one mole of substance is called...

• molecular mass
• mole constant
• molar mass
• atomic weight

What is the molar mass of table salt (NaCl)?

• 116.89 g/mol

• 35.45 g/mol

• 22.99 g/mol

• 58.60 g/mol

• None of these is correct

Determine the number of moles in 5.2 x 10²² atoms of gold.

• 0.086 mole

• 0.52 mole

• 8.63 x 10⁴⁴ moles

• 3.1 x 10⁴⁶ moles

Determine how many grams are in 0.36 moles of CCl₄.

• 150 g

• 55 g

• 0.0023 g

• 2.2 g

• None of these is correct

How many atoms would be contained in 454 grams of iron?

• 6.02 x 10²³ atoms

• 8.14 atoms

• 4.89 x 10²⁵ atoms

• 55.9 x 10²³ atoms

• None of these is correct

How many molecules are present in 25 g of O₂?

• 32. molecules

• 0.78 molecules

• 4.7x10²³ molecules

• 1.3 x 10²³ molecules

• None of these is correct