Question

1. Determine the net charge on oxygen in the following compound: Ni2 (SO4)3
2. Find the mass in 2.12 moles of kbr
3. Determine the number of moles of NH3 produced when 6.0 moles of nitrogen reacts with hydrogen.
4. Using the equation N2+3H2à2NH3, determine the number of grams of NH3 produced when 5.40 g of hydrogen react.

please show work :)

Answer 1

Answer:

1) CHARGE ON OXYGEN= -2

2) 1 mole=99g

              2.12 mole=2.12*99=209.88g

3)1mole of nitrogen gives 2 moles of ammonia

 hence 6moles of nitrogrn gives 12 moles of ammonia

4)6g gives 34g of ammonia

 5.6g gives =34/6*5.6=31.7g of ammonia

Explanation: