The mole test review

Determine the molar mass for CCl₄

• 153.823 g/mol

• 47.464 g/mol

• 189.35 g/mol
• 83.497 g/mol

What is the mass of one mole of aluminum?

• 26.982 g
• 13 g
• 53.985 g
• 14 g

How many particles are in 13.5 grams of Beryllium?

• 1.55 particles

• 9 particles
• 4.19x10²³ particles

• 9.02x10²³ particles

What is the molar mass of NaOH?

• 39.996 g/mol

• 38.989 g/mol
• 23.998 g/mol
• 57.004 g/mol

Find the percentage composition of  Mg in Mg₃(PO₄)₂.
   

• 27.74% Mg

• 36.67% Mg

• 9.25% Mg

• 13.45% Mg

How many molecules are there in 24.0 g of iron(III)fluoride?

• 2.68 x 10²⁴ molecules
• 3.29 x 10²³ molecules
• 1.28 x 10²³ molecules
• 1.76 x 10²¹ molecules

Tags

NGSS.HS-PS1-7

How many molecules are in 2.5 mol of NaCl?

• 1.5x10²³

• 124

• 0.042

• 1.5x10²⁴

Tags

NGSS.HS-PS1-7

What is the definition of molar mass?

• number of grams per one mole of a substance
• whole number ratio that is a multiple of a chemical formula
• simplest, whole number ratio of a chemical formula

Tags

NGSS.HS-PS1-7

Which would have more atoms?

• 1 mole of Li
• 1 mole of Au
• 1 mole of Si
• None, all are equal

Tags

NGSS.MS-PS1-1

What is the mole used for?

• To count the number of elements in a substance

• To count the number of atoms or molecules

• To measure the amount of energy

• To measure the amount of bonding

Tags

NGSS.HS-PS1-7