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Lilit [14]
3 years ago
13

A 0.89% (w/v) sodium chloride solution is referred to as physiological saline solution because it has the sameconcentration of s

alts as human blood. What is the molarity of a physiological saline solution?
Chemistry
1 answer:
elixir [45]3 years ago
4 0

Answer: Molarity of a physiological saline solution is 0.15 M

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

Molarity=\frac{n\times 1000}{V_s}

n = moles of solute

V_s =volume of solution in ml

Given : 0.89 g of sodium chloride in 100 ml of solution.

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}=\frac{0.89g}{58.5g/mol}=0.015moles

Volume of solution = 100 ml

Molarity=\frac{0.015\times 1000}{100ml}=0.15M

Molarity of physiological saline solution is 0.15 M

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