Question

How many moles are there in 30g of calcium chloride

Answer 1

Hi there,

As we know,

Molar mass of NaCl = 58.4 g/mol

Number of moles in 30.0 g NaCl =30/58.4

= 0.514 Moles.

Hope it will help you

Answer 2

The answer is 0.8 moles.

GIVEN

Mass of Calcium of Chloride = 30 grams

TO FIND

Number of moles.

SOLUTION

We can simply solve the above problem as follows;

We know that mole is defined as the number of elementary entities present in the substance.

Now,

1 Mole of substance = Molar mass of the substance.

We are given a compound named Calcium Chloride.

Molar mass of Calcium chloride = 1 mole

Molar mass of CaCl₂ = 40 + 2 × 35.4 = 110.9g/mol

So,

110.9 grams of CaCl₂ = 1 mole

Therefore,

1 gram of CaCl₂ = 1/110.9

30 grams of CaCl₂ =

$= \frac{1}{110.9} \times 30$

= 0.8 moles.

Hence, The answer is 0.8 moles.

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