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choli [55]
3 years ago
13

How many molecules are in 120 grams of Na2SO4

Chemistry
1 answer:
brilliants [131]3 years ago
5 0

3.06 × 10^23 molecules

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Neon has 2 isotopes. Neon-20 has a mass of 19:992 amu and
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20.0928.

Explanation:

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Calculate the mass percent by volume of 330.1 g of glucose (C₆H₁₂O₆, MM = 180.2 g/mol) in 325 mL of solution.
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The solution concentration expressed in percent by volume means that the amount of solute present in 100 parts volume of solution.

It is represented in formula as :

mass percent by volume =\frac{\text {mass of solute}\times 100}{\text {Volume of solution in ml}}\%

Given : mass of glucose = 330.1 g

volume of solution = 325 ml

Thus mass percent by volume =\frac{330.1g\times 100}{325ml}=101.6\%

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