Gram - Gram Review Quiz

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

• 4

• 3

• 2

• 1

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

• False

• True

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

I use mole to mole ratio (coefficients) from balanced chemical equation to convert Compound A into Compound B?

• True

• False

Tags

NGSS.HS-PS1-7

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

When converting from grams of compound A to grams of compound B, the molar mass used in the first and third step are the mass of the same compound.

• True

• False

Tags

NGSS.HS-PS1-7

The correct order of unit conversions for gram to gram stoichiometry is

• mol -> mol -> g

• g -> mol -> mol -> g

• mol -> g -> mol -> g

• mol -> g -> g -> mol

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

1 mol H₂O

2 mol H₂O/1 mol O₂

1 mol O₂

10 g O₂

18.02 g H₂O

32 g O₂

Tags

NGSS.HS-PS1-7

Cl₂ + 2 KBr → Br₂ + 2 KCl

How many grams of potassium chloride can be produced from 356 grams potassium bromide?

• 749 g
• 225 g
• 479 g
• 814 g

Tags

NGSS.HS-PS1-7

4 Al + 3 O₂ –> 2 Al₂O₃ 

How much aluminum would be needed to react with 45 grams of O₂?

• 28.5 g

• 71.1 g

• 60 g

• 50.6 g

Tags

NGSS.HS-PS1-7