Question

What is the molarity of a solution containing 50 g of nacl per liter?

Answer 1

>Molarity= moles of solute/vol. of solution (lit)

Given: 1]given weight = 50g 2]vol. = 1 lit.

°As we know that Nacl (molar mass) =58.4 u

>Moles= given weight /molar weight

Moles= 50/58.4 =0.857

Molarity= 0.857/1 (lit.)

M=0.857 [mol/lit.]


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Answer 2

The molarity of NaCl solution is 0.855 M

Explanation:

To calculate the molarity of solution, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Mass of solute}}{\text{Molar mass of solute}\times \text{Volume of solution (in L)}}$

We are given:

Mass of solute (NaCl) = 50 grams

Molar mass of solute (NaCl) = 58.5 g/mol

Volume of solution = 1 L

Putting values in above equation, we get:

$\text{Molarity of NaCl solution}=\frac{50}{58.5\times 1}\\\\\text{Molarity of NaCl solution}=0.855M$

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