100 cm³ of oxygen is made to react with 50 cm ³ of hydrogen, and the whole reaction mixture was then passed through anhydrous calcium chloride. What is the volume of gas left?

Valentineezekiel

3 years ago

2H2(g)+O2(g)---->2H2O(g)
2cm³: 1cm³:2cm³
50cm³:100cm³:--
50cm³:25cm³:50cm³
0cm³:75cm³:50cm³
The gases left are oxygen and water vapour
but the mixture was passed through anhydrous CaCl2 which is deliquescent and would absorb the water leaving behind only oxygen as the residual gas..
Residual gas remain=100-25cm³
=75cm³
therefore D is correct

Myschool Kelly

9 years ago

The question has been modified. Thanks for your contributions.

Hannies100

9 years ago

Don't really seem to get the explanation

regony600

9 years ago

Incomplete question

Micheal42

5 years ago

i dont really get the explanation