Question

6o millimetres of hydrogen and 40millimeters of oxygen were reacted together. Determine the volume of the gas that remained unreacted

Answer 1

We know that hydrogen and oxygen always react in the ratio 2:1 to form water.

Now, we have 60 mm of hydrogen, which will be twice the amount of oxygen it reacts with.

Amount of hydrogen=> 60 mm

Amount of oxygen===>60÷2=30 mm

Hence, 60 mm of hydrogen and 20 mm of oxygen will react together.

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