Write mass and charge balances for SrSo4 (s)+ So4^2-
So4^2- + H2O --> HSO4- + OH-
and
H2)---> H+ + OH-
Did you mean,
SrSO4(s) ==> Sr^+2 + SO4^= and
SO4^= + H2O ==> HSO4^- + OH^-
Then
MB: (Sr^+2) = (SO4^=) + (HSO4^-)
CB: 2*(Sr^+2)=2*(SO4^=) + (HSO4^-) + (OH^-)
Let's break down the given reactions and write mass and charge balances for each one:
1. SrSO4 (s) → Sr2+ + SO42-
For the mass balance, we need to ensure that the mass of the reactants is equal to the mass of the products. Since SrSO4 is a solid, it means it does not dissociate in water. Therefore, the mass of SrSO4 on the left side is equal to the sum of the masses of Sr2+ and SO42- on the right side.
For the charge balance, the total charge on both sides of the equation should be equal. In this reaction, there is no change in charge because SrSO4 does not dissociate. So the charge is balanced automatically.
2. SO42- + H2O → HSO4- + OH-
For the mass balance, we need to ensure that the mass of the reactants is equal to the mass of the products. In this reaction, the mass of SO42- on the left side is equal to the sum of the masses of HSO4- and OH- on the right side.
For the charge balance, the total charge on both sides of the equation should be equal. In this reaction, we have a negative charge on the left side due to SO42- and a positive charge on the right side due to HSO4- and OH-. To balance the charges, we need to have the same amount of positive and negative charges. Since H2O is neutral, it does not contribute to the charge balance.
3. H2 → H+ + OH-
For the mass balance, we need to make sure that the mass of the reactant (H2) is equal to the sum of the masses of the products (H+ and OH-).
For the charge balance, the total charge on both sides of the equation should be equal. In this reaction, we have no charge on the left side, but we have a positive charge (H+) and a negative charge (OH-) on the right side. To balance the charges, we need to have the same amount of positive and negative charges.
Remember, when writing mass and charge balances, it is important to consider both sides of the chemical equation to ensure conservation of mass and charge.