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ollegr [7]
3 years ago
13

What is the mass of Na2CO3∙10H2O that is needed to make 100 ml of sodium carbonate solution with the mass percentage of Na2CO3∙

equal to 2%? The density of the final solution is equal to 1 g/ml.
Chemistry
1 answer:
schepotkina [342]3 years ago
7 0

first we find the mass of the final solution

we know that

density=mass/volume

we know the density and volume

1=m/100

m=100g

now we calculate the mass ofNa2CO3

2% of 100 is equal with 2g of Na2CO3

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