Stiochiometry Open Notes Quiz

To convert grams of a substance to moles of a substance you use...

• molar mass

• molar ratio

• Avogadro's Number

• Hess's Law

In a balanced equation, the coefficients represent ______ required for the reaction.

• the number of grams of each substance

• the number of moles of each substance

• the atomic number

• the ionic charge

Tags

NGSS.HS-PS1-7

For this reaction, the molar ratio of hydrogen to oxygen is

• 1:2

• 2:2

• 1:1

• 2:1

Tags

NGSS.HS-PS1-7

How many moles of hydrogen are reacting with oxygen?

• 4 mol

• 2 mol

• 1 mol

• 8 mol

Tags

NGSS.HS-PS1-7

How many moles of water will be produced from 320.00 grams of oxygen reacting with hydrogen?

2 H2 + O2 --> 2 H2O

• 40 mol H2O

• 64 mol H2O

• 20 mol H2O

• 320 mol H2)

Which is required to figure out the mole ratio of two substances?

• Molar Mass

• Specific Heat

• Balanced Equation

• Atomic Number

Tags

NGSS.HS-PS1-7

How many grams of hydrogen are needed to make 316.00 moles of water?

• 5688.00 g H2

• 2847.16 g H2

• 2.00 g H2

• 638.32 g H2

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

How many moles of water can be made from 3 moles of O2?

• 8 mol H2O

• 6 mol H2O

• 5 mol H2O

• 3 mol H2O

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What mass of hydrogen can be made from 4 moles of oxygen?

2 H2. + O2. --> 2 H2O

• 16.16 g H2

• 8.08 g H2

• 4.04 g H2

• 2.02 g H2

Tags

NGSS.HS-PS1-7

What mass of hydrogen is needed to make 5 moles of water?

• 5.10 g H2

• 10.10 g H2

• 5.05 g H2

• 10.05 g H2

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5