Complete and balance the following equations for gass-evolution reactions. (NH4)2SO4 (aq) + KOH (aq) ------> Express...

Complete and balance the following equations for gass-evolution reactions.

(NH4)2SO4 (aq) + KOH (aq) ------>

Express your answer as a chemical equation. Identify all of the phases in your answer please.

Expert Solution

First you have two N's...
Put a two in front of NH3.
Nitrogen is now balanced.
(NH4)2SO4 + KOH > K2SO4 + 2NH3 + H2O
You have 9 hydrogens on the left, and you have 8 on the right.
I recommend you write water (H2O) as HOH, it makes it a lot easier, and keep the hydrogens as one group and hydroxides as one group. So that would mean you have 2NH3 and HOH on the right side, so you have 7 hydrogens. On the left you have 8. Well you can add a 2 in front of the HOH to get you 8.
(NH4)2SO4 + KOH > K2SO4 + 2NH3 + 2H2O
Nitrogen and hydrogen is now balanced. Now to the SO4's.
That's already balanced!
Now to the K's..
1 on the left and 2 on the right, add a 2 in front of the KOH.
(NH4)2SO4 + 2KOH > K2SO4 + 2NH3 + 2H2O

Now all are balanced. (Remember, writing water as HOH will help A LOT). You have 2 OH's on the left and 2 on the right.

Your final answer:
(NH4)2SO4 + 2KOH > K2SO4 + 2NH3 + 2H2

queen_honey_blossom answered 1 year ago

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