Concept explainers
Interpretation:
The amount of hydrogen reacted and thetotal amount of hydrogen that was used initially needs to be determined.
Concept introduction:
Gay Lussac’s Law explains that when a reaction goes all the reactants react in a definite volumes and produces the products in definite volume also.
Answer to Problem 83A
The initial mass of hydrogen present before the reaction was
Mass of hydrogen used in the reaction is
Explanation of Solution
As per the balanced chemical equation:
Two moles of phosphorus reacts with three moles of hydrogen to form two moles of phosphine.
If
Here
But it is
- Making equation between phosphorus and hydrogen get:
- Making equation between Phosphine and hydrogen :
So
For getting
When gases react they do so in definite volume as per Gay Lussac’s Law. So here also the number of particles of hydrogen should be double to the number of particles of oxygen.
Chapter 3 Solutions
Glencoe Chemistry: Matter and Change, Student Edition
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