Answer the questions completely with complete calculations.
1. what is the oxidation number of elements in BrO2-, BrO3-& BrO4-, Br2, Br-?
2. In the reaction 4 NH3 (g) + 5 O2 (g) --> 4 NO (g) + 6 H2O(l)
750 g NH3 is mixed with 750 g of O2.
a. what is the amount of NO produced in this reaction?
b. Which is the limiting reagent?
c. How much of the excess reagent remains?
d. The actual yield of NO obtained was 400g. What is the % yieldof NO?
3. A compound of 49.4% K, 20.3% S, and 30.3% O by mass. What isthe empirical formula of the compound?
