Question

0.75 liters of a 0.5M solution contains how many grams of CaCl2?
any one can give me and I will give you brilliant mark ​

Answer 1

Answer:

41.61

Explanation:

Answer 2

Answer:

The answer to this question is 41.625 grams.

Explanation:

First of all, let's understand what molarity means.

It is a concentration term depicting the number of moles present per unit volume.

Mathematically

$M=\frac{n}{V}$

In the question, we have been given the volume as V= 0.75 liters,

and the concentration is 0.5 M, so from here we will calculate the number of moles present, and then we will calculate its mass of it.

$0.5=\frac{n}{0.75} \\n=0.375$

For calculating the mass, firstly we need the mass of CaCl2

As we know the mass of calcium is 40 grams.

The mass of chlorine is 35.5 grams.

Thus, the Molar Mass of CaCl2

$=40+2(35.5)\\=111$gram

Thus, the total mass presence would be

$0.375*(111)\\41.625 gram$

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