30cm3 pf hydrogen at s.t.p combine with 20cm3 of oxygen t...
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
50cm3
35cm3
30cm3
25cm3
Correct answer is B
2H2(g) + O2(g) → 2H2O(g).
2 volumes of H2(g) and 1 volume of O2(g) produced 2 volumes of H2O2
ratio of reacting volumes
30cm3 + 15cm3 → 30cm3
30cm3 of Hydrogen requires 15cm3 of oxygen to produce 30cm3 of water.
Excess oxygen: 20cm3 – 15cm3 = 5cm3
Total volume of gaseous mixture: 5cm3 of Oxygen + 30cm3 of Water = 35cm3
What is the chemical symbol for Chlorine? ...
Which of the following separation is routinely applied in the petroleum industry ...
What is the atomic number of Bismuth? ...
Vulcanization involves the removal of ...
In the electrolysis of CuSO4(aq) using copper electrodes, the reaction at the anode is...
Hardness of water is mainly due to the presence of ...
Which property of a reversible reaction is affected by a catalyst? ...
MnO4(aq) + 8H + 5Fe2+ → Mn2+(aq) + 5Fe3+(aq) + H2O. The oxidation number of maganese in the ab...
Cu2+(aq) + 4NH3(g) ↔ [Cu(NH3)4]2+(aq) In the reaction above, what is the effect of precipitati...