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How do you make a 0.03 M H3AsO3 (150 mL) solution from NaAsO2? Please show calculations!

How do you make a 0.03 M H3AsO3 (150 mL) solution from NaAsO2? Please show calculations!

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Answer #1

Therefore, for preparing 0.03 M solution of H3ASO3

weigh 0.5845 g of NaAsO2 and take out 257 microliter glacial acetic acid. Add both into a flask containing water. Now make the volume 150 ml to get the desired solution.  

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