<u>Answer:</u> The percentage by weight of sodium in sodium sulfate is 32.37 %.
<u>Explanation:</u>
In
, there are 2 sodium atoms, 1 sulfur atom and 4 oxygen atoms.
To calculate the mass percent of element in a given compound, we use the formula:
Mass of sodium =
Mass of sodium sulfate = ![[(2\times 22.99)+32.07+(4\times 16)]=142.05g](https://tex.z-dn.net/?f=%5B%282%5Ctimes%2022.99%29%2B32.07%2B%284%5Ctimes%2016%29%5D%3D142.05g)
Putting values in above equation, we get:
Hence, the mass percent of sodium in sodium sulfate is 32.37%.