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biennhan9796
20.07.2019 •
Chemistry
The change that occurs when a solid goes directly to the gas or vapor state without becoming a liquid is
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Ответ:
Ответ:
Limiting reactant is H2.
Excess reactant is O2.
Maximum 5.6 mol of H2O can be produced.
Explanation:
2H2 + O2 > 2 H2O
from reaction 2 mol 1 mol
given 5.6mol 4.7mol
calculated 5.6mol 2.8 mol
We can see that for 5.6 mol H2 only 2.8 mol O2 needed, but we have 4.7 mol O2 given, so we have excess of O2.
Then limiting reactant is H2.
Excess reactant is O2.
2H2 + O2 > 2 H2O
from reaction 2 mol 2 mol
given 5.6 mol x mol = 5.6 mol