50cm3 of hydrogen are sparked with 20cm3 of...
50cm3 of hydrogen are sparked with 20cm3 of oxygen at 100°C and 1atm . The total volume of the residual gases in
50 cm3
10 cm3
40 cm3
30 cm3
70 cm3
Correct answer is A
The equation of the reaction is:
2H_{{2}{(g)}} + O_{{2}{(g)}} = 2H_{2}O_{(g)}
Before Sparking we have : 50cm^{3} : 20cm^{3}
On Sparking, 40cm^{3} : 20cm^{3} : 40cm^{3}
After Sparking, we have 10cm^{3} : 0 : 40cm^{3}
Hence, the volume of residual gases = (10+40)cm^{3} = 50cm^{3}
The salt that will form a precipitate soluble in excess ammonia solution is ...
Which group does calcium belong to in the periodic table? ...
Catalytic hydrogenation of alkenes produces compounds with the general formula ...
The temperature of a body decreases when drops of liquid placed on it evaporate because? ...
Which of the following salts is stable to heat? ...
What is the chemical symbol for Cadmium? ...
Which of the following gases will diffuse most rapidly? [H = 1.00, C = 12.0, O = 16.0, S = 32.0, ...