Answer to Question #42038 in Inorganic Chemistry for Neelima Borade

Question #42038
1. Calculate the equivalent mass of potassium bromate in the net reaction:
+ − − +
3As + BrO3 + 9H2O → 3H3AsO4 + Br + 9H
3
(Br = 80 amu)
2. What is the equivalent mass of arsenous oxide in the following reaction?
As O 2I 2H O As O 4HI 2 3 + 2 + 2 → 2 5 +

3. As an oxidizing agent, hydrogen peroxide is reduced to water.
H2O2 + 2H + 2e → 2H2O
+ −

How many grams of H2O2
constitute one gram milli-equivalent H2O2?
4. Na2
S2O3
5, can be oxidized to tetrathionate ions: H2O
− − −
2S O → S O + 2e
2
4 6
2
2 3

How many grams of Na2
S2O3
5. constitute 0.3 gram-equivalent?
0
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