Answered

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How much granulated sodium chloride (table salt) is required to make a 0.5 M solution with a final volume of 1 liter?
A. 14.6 grams
B. 29.2 grams
C. 58.4 grams
D. 116.8 grams

Sagot :

Amys2025idn

Answer:

B. 29.2 g

Explanation:

Pre-Solving

We are given a 0.5 M solution of NaCl with a volume of 1L.

We want to know how much sodium chloride in grams is needed in order to make this 0.5 M solution.

Solving

First, find how many moles are required.

[tex]1 L * \frac{0.5 mol}{1 L } = 0.5 mol[/tex]

Now, convert from moles to grams.

The molar mass of NaCl is 58.4 grams

[tex]0.5 mol * \frac{58.4 g}{1 mol} = 29.2 g[/tex]

So, the answer is B.

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