Asample of sodium bicarbonate is known to contain some impurities. it is found that na makes up 18.00% of the entire mass of the sample. all of the na comes from the nahco3 compound. find the mass percent of nahco3 in the sample

Answer : The mass percent of in the sample is, 65.7 %

Explanation :

As we are given that Na makes up 18.00% of the entire mass of the sample.

First we have to calculate the mass percent of Na in .

Mass of Na = 23 g

Mass of = 84 g

Putting values in above equation, we get:

Now we have to calculate the mass percent of in the sample.

As, 27.4 % amount of Na present in 100 %

So, 18 % amount of Na present in

Therefore, the mass percent of in the sample is, 65.7 %

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