3 years ago

Whats the correct answer

Chemistry

1 answer:

AVprozaik [17]3 years ago

4 0

Answer:

Explanation:

i'd'k

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What is the molarity of a solution in which 58g of nacl are dissolved in 1.0 l of solution

Lady_Fox [76]

Hey there :

Molar mass of NaCl = 58.44 g/mol

Number of moles :

n = mass of solute / molar mass

n = 58 / 58.44

n = 0.9924 moles of NaCl

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Therefore:

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How many atoms are in 123 g of calcium

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3 years ago

How many grams of sodium chloride are contained in 250.0 g of a 15% NaCl solution?

kramer

Given concentration of NaCl=15%

Means ,

In every 100g of Solution 15g of NaCl is present .

Now

Given mass=250g

So ,

$\\ \Large\sf\longmapsto 250\times 15\%$

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