I need to create 1.0 M solution with 5.21 grams of Na2CO3.
I need to create 1.0 M solution with 4.12 grams of NaHCO3 .
How much distilled water to is use to create these 1.0 M solutions.
Molecular weight: Na2CO3=23*2+12+16*3=106g/mol.
1M means 1 mole/litre. Since you have 5.21 ...
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