kierrastewart1986 kierrastewart1986
  • 13-12-2022
  • Chemistry
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100.0 ml of 0.25 m na2co3 solution was added to 100.0 ml of hard water. the precipitate was filtered and dried and the mass of caco3 precipitate was measured to be 0.153g. what mass of ca2 ions was in the sample of water?

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