What would barium do to obtain a noble gas structure?
2 answers:
You might be interested in
<u>Answer:</u> The percentage by mass of NaCl in the mixture is 38.5 %
<u>Explanation:</u>
To calculate the mass percentage of element in compound, we use the equation:
.......(1)
- <u>For NaCl:</u>
Mass of sodium element = 23 g
Mass of NaCl = 58.5 g
Putting values in equation 1, we get:
Mass fraction of sodium metal in NaCl = 0.3932
- <u>For
:</u>
Mass of sodium element = 23 g
Mass of = 85 g
Putting values in equation 1, we get:
Mass fraction of sodium metal in sodium nitrate = 0.271
Let us assume the mass fraction of NaCl in the mixture is 'x'
So, the mass fraction of in the mixture will be '(1-x)'
We are given:
Percent by mass of Na in the mixture = 31.8 %
Mass fraction of Na in the mixture = 0.318
Evaluating the mass fraction of NaCl in the mixture:
x = 0.385
Percent by mass of NaCl in the mixture will be =
Hence, the percentage by mass of NaCl in the mixture is 38.5 %