Question

calculate the mass percent of elements present in NACL

Answer 1

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here's your answer

Answer 2

The mass percent of sodium and chlorine present in $NaCl$ is 39.3% and 60.7 % respectively.

Explanation:

To calculate the mass percent of element in a given compound, we use the formula:

$\text{Mass percent of element}=\frac{\text{Mass of element}}{\text{Molar mass of substance}}\times 100$

a) $\text{Mass percent of sodium}=\frac{\text{Mass of sodium}}{\text{Molar mass of NaCl}}\times 100$

$\text{Mass percent of sodium}=\frac{23}{58.5}\times 100=39.3\%$

b) $\text{Mass percent of chlorine}=\frac{\text{Mass of chlorine}}{\text{Molar mass of NaCl}}\times 100$

$\text{Mass percent of chlorine}=\frac{35.5}{58.5}\times 100=60.7\%$

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