30cm3 pf hydrogen at s.t.p combine with 20cm3 of oxygen to form steam according to the following equation 2H2(g) + O2(g) → 2H2O(g).

Calculate the total volume of the gaseous mixture at the end of the reaction

Lazy_scribble

5 years ago

pls explain

Alisha101

2 years ago

@Frances 2H2+O2=2H2O
2. : 1=2
30cm^3:20cm^3:0cm^3
30cm^3:15cm^3:30cm^3
The total volume of mixture=excess oxygen+ volume of products
Excess oxygen =20-15=5cm^3
Total volume= 5+30(cm^3)
Therefore ,total volume=35cm^3

Chuck609

3 years ago

No Explanation