Question

calculate the weight of Na2co3 present in 100ml of 0.1m Na2co3 solution?​

Answer 1

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Answer 2

Question - calculate the weight of na2co3 present in 100ml of 0.1M na2co3 solution?

Given - Volume of water - 100 ml

Molarity - 0.1 M

Find - Weight of Na2CO3 present in solution.

Solution - Molarity is calculated by the formula - number of moles of solute/ volume of solution in litre.

Volume of water in litre - 0.1 litre.

Molecular weight of Na2CO3 - 105.9 g/mol

Keeping the values in equation-

Molarity - weight/(105.9*0.1)

0.1*105.9*0.1 - weight.

Weight - 1.059 gram

Hence, the weight of Na2CO3 present in given solution is - 1.059 gram.