Chemistry Conversions

What is the mole used for?

• To measure the amount of grams in a substance

• To measure the amount of atoms or molecules in a substance

• To measure the amount of energy in a substance

• To measure the amount of bonding in a substance

Tags

NGSS.HS-PS1-5

Is this the correct conversion factor you would use if you wanted to determine the number of atoms in 15.1 moles of NaCl?

• Yes, it is the correct conversion

• No, it is not the correct conversion

Calculate the molar mass of NaBr.

• 22.99

• 79.90

• 102.9

• none of the above

Avogadro's number is:

• the weight of a carbon atom

• 6.02 x 10²³

• a dozen

• 5.00 x 10¹⁵

The mass of one mole of an element is equal to

• its atomic number from the periodic table, but in amus.

• its atomic mass from the periodic table, but in amus.

• its atomic mass from the periodic table, but in grams.

• its atomic number from the periodic table, but in grams.

How many steps are in a gram to molecule conversion?

• 1

• 2

• 3

• 4

How many steps are in a gram to mole conversion?

• 1

• 2

• 3

• 4

What is the mass of one mole of silver?

• 32.06 g

• 107.87 g

• 14.01 g

• 22.99 g

What are the units for molar mass?

• grams

• moles

• grams per mole

• amu

Tags

NGSS.HS-PS1-7

Convert 5 moles of water to grams.

• A) 18 g

• B) 90 g

• C) 45 g

• D) 100 g