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Calculates the mass concentration in g dm3 of the ions in the following solutions
A, Cl- ions in 0•2mol dm3 of NaCl solution
B,NO3 ions in 0•75 mol trioxonitrate (v) acid
C,SO4^-2 ion in 2 mol dm3 potassium tetra ox soul phage ( VI) solutions

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asked by Blessing
  1. As I told you before, your School Subject is Chemistry!

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    posted by Ms. Sue
  2. I assume you mean Molarity when you type "mol". That is not an accepted substitution.

    I will do one, all are similar.

    B. If one has 0.75M solution, then concentration of the nitric acid is
    .75Moles/liter= .75Moles/liter*63grams/mole
    = .75*63 grams/dm^3

    Because the formula for the acid is HNO3, the concentration of the NO3- ions is the same as the acid.

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    posted by bobpursley

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