Mole/Molar Mass/Conversions

Front

What is the molar mass of H₂O?

Back

18 grams

Front

What is Avogadro's Number?

Back

6.02 x 10²³

Front

What are the units for molar mass?

Back

grams/mole

Front

How many molecules are in 2.5 mol of NaCl?

Back

1.51 x 10²⁴

Front

How many atoms are in 1 mole of NaCl?

Back

6.02 x 10²³

Front

Define molar mass.

Back

The mass of one mole of a substance, typically expressed in grams/mole.

Front

What is the relationship between moles and mass?

Back

Mass (grams) = Moles x Molar Mass (grams/mole).

Front

How do you convert grams to moles?

Back

Moles = Mass (grams) / Molar Mass (grams/mole).

Front

What is the significance of Avogadro's Number?

Back

It represents the number of particles (atoms, molecules) in one mole of a substance.

Front

Calculate the number of moles in 36 grams of water (H₂O).

Back

2 moles (Molar mass of H₂O = 18 grams/mole).