3 years ago

How many moles of ammonia are needed to react completely with 3 moles of phosphoric acid?

Chemistry

2 answers:

Fantom [35]3 years ago

7 0

The moles of ammonia that are needed to react completely with 3 moles of phosphoric acid is 6 moles

Explanation

Step 1:

write the a balanced chemical reaction that occur between ammonia and phosphoric acid.

3NH3 + H3PO4 → (NH4)3PO4

Step 2: use of mole ratio of NH3 :H3PO4 to calculate moles of NH3

that is, NH3: H3PO4 is 3:1 therefore the moles of NH3 = 3moles x 3/1 = 9 moles

3 moles of NH3 was in excess therefore the mole of NH3 that reacted = 9-3 = 6 moles

baherus [9]3 years ago

6 0

Just took this, the answer is 6

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