Question #47e74

1 Answer
Sep 25, 2017

Ni(ClO_4)_2(s)stackrel(H_2O)rarrNi^(2+) + 2ClO_4^(-)Ni(ClO4)2(s)H2ONi2++2ClO4

Explanation:

As with any chemical reaction, MASS and CHARGE are conserved absolutely. We started with a NEUTRAL material, and the TOTAL charge of the ions on the right hand side is neutral. We started with approx. 258*g258g of the perchlorate. There are precisely 258.8*g258.8g in solution.

Therefore we started with 4 moles of Ni(ClO_4)_2Ni(ClO4)2. I think that when this dissolves in solution, there will be FOUR MOLES of Ni^(2+)Ni2+, and HOW MANY MOLES of perchlorate anion?