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Mass and Mole

Total questions: 7

Worksheet time: 4mins

Name
Class
Date
1.

One mole of mercury contains more atoms than one mole of helium

a)

True

b)

False

2.

The Avogadro's number describes the number of particles in one mole of the substance

a)

True

b)

False

3.

One mole of a liquid substance contains a different number of particles from one mole of the same substance in the solid state

a)

False

b)

True

4.

To calculate the number of moles in a given mass which equation will we use?

a)

n=m/M

b)

Non of these

c)

m=n/M

5.

Calculate the molar mass of Fe2O3+3SO3 --

a)

Fe2(SO4)3

b)

SO2(Fe3)

c)

O2(SFe4)

6.

Calculate the molar mass of CuSO4

a)

159.5 g/mol

b)

69.09 g/mol

c)

74.09 g/mol

d)

14.4 grams

7.

What is the definition of molar mass?

a)

whole number ratio that is a multiple of a chemical formula

b)

6.02 x 10^23 particles per one mole of a substance

c)

number of grams per one mole of a substance

d)

simplest, whole number ratio of a chemical formula