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Reil [10]
4 years ago
10

What size volumetric flask would you use to create 1.50 M solution using 43.85 g of NaCl?

Chemistry
1 answer:
lozanna [386]4 years ago
4 0

The size of volumetric flask is 0.5L = 500mL

<u>Explanation:</u>

In order to estimate the concentration of a solution in molarity, then the total number of moles of the solute is divided by the total volume of the solution.

Molarity of a solution is given by;

M= \frac{n}{V}

Where;

n= number of moles of solute

V= volume of solution = size of volumetric flask

n=\frac{m }{ m.m}

Where;

m= mass of solute=43.85g

m.m= molar mass of solute=58.5g

Note that solute is NaCl(s)

n=\frac{43.85}{58.5}=0.75mol

We know that the molarity is 1.50M

To find the size of the volumetric flask, we make V in M=n/V subject of formula

V=\frac{n}{M}

V=\frac{0.75}{1.50}

V=0.5

Therefore, the size of volumetric flask is 0.5L = 500mL.

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