Mole Gram Conversions

What are the units for molar mass?

• grams

• amu

• grams/mole

• liters

What is the molar mass of one molecule of Nitrogen N₂?

• 14.0 amu

• 14.0 g

• 28.0 g

• 28.0 amu

Tags

NGSS.HS-PS1-7

What is the mass of 0.89 mol of CaCl₂?

• 111 grams

• 0.008 grams

• 98.9 grams

• none of the choices

How many moles are in 98.3 grams of aluminum hydroxide, Al(OH)₃?

• 1.26 moles

• 0.8 moles

• 7,670 moles

• 1.63 x 10^-22 moles

Tags

NGSS.HS-PS1-7

Determine the mass of 4.20 moles of C₆H₁₂

• 353 g

• 0.0499 g

• 337 g

• 2.53 x 10²⁴ g

How many steps will it take me to convert units from grams of compound A to grams of compound B?

• 4

• 3

• 2

• 1

How do I convert from grams to moles?

• multiply by molar mass

• divide by molar mass

• multiply by Avogadro's number

• divided by Avogadro's number

How do I convert from moles to grams?

• multiply by molar mass

• divide by molar mass

• multiply by Avogadro's number

• divided by Avogadro's number

If we have 10 g of O₂, how many grams of H₂O can we make?

2H₂ + O₂ --> 2H₂O

Place the parts of the setup of a gram to gram conversion in the correct position.

a

b

c

d

e

f

10 g O₂

1 mol O₂

2 mol H₂O/1 mol O₂

18.02 g H₂O

1 mol H₂O

32 g O₂

Tags

NGSS.HS-PS1-7

I use molar mass to convert to moles when the problem gives me grams?

• False

• True