Moles Conversions

How many formula units are in 2.5 moles of NaCl?

• x10²⁴ formula units

• formula units

• formula units

• x10^-24 molecules

Shivani measures out 6.0 moles of epsom salt (MgSO₄) to put in her bath. How many grams of MgSO₄ went in the bath?

• 3.6 x 10²⁴ g

• 720 g

• 0.050 g

• 340 g

Tags

NGSS.HS-PS1-7

How many molecules are there in 31.8 moles of water?

• 5.28 x 10^-23 molecules

• 1.91 x 10²⁵ molecules

• 5.28x 10-²⁵

• 1.91 x 10²²

Determine the mass of 4.20 moles of C₆H₁₂

• 353 g

• 0.0499 g

• 337 g

• 2.53 x 10²⁴ g

Tags

NGSS.HS-PS1-7

• 18 g

• 36 g

• 72 g

• 144 g

Calculate the number of atoms in 0.0340 g Zn.

• 5.20 x 10^-4 atoms Zn

• 3.13 x 10²³ atoms Zn

• 3.13 x 10²⁰ atoms Zn

• 2.05 x 10²² atoms Zn

Tags

NGSS.HS-PS1-7

How many formula units are there in 2.45 moles potassium chloride?

• 4.07 x 10^-24 

• 1.47 x 10²⁴ 

• 1.47

• 4.07

What is the mass of 1.2 x 10²⁴ atoms of C?

• 2.0 grams

• 24 grams

• 0.17 grams

• 1.4 x 10²⁵ grams

How many moles are in 98.3 g of Aluminum Hydroxide (Al(OH)₃)?

• 78.0 mol

• 1.30 mol

• 6.60 mol

• 5.90 mol

Tags

NGSS.HS-PS1-7

How many moles are in 16.94g of water?

• 16.94 mol H₂O

• 0.9401 mol H₂O

• 305.3 mol H₂O

• 1.063 mol H₂O