100cm3 of oxygen pass through a porous plug is 50 seconds, the time taken for the same volume of hydrogen to pass through the same porous plug is? [O = 16, H = 1]

12.5secs

Explanation:

From the question, we obtained the following information:

t1(O2) = 50sec

M1(O2) = 16 x 2 = 32g/mol

M2(H2) = 2 x 1 = 2g/mol

t2 (H2) =?

t2/t1 = √(M2/M1)

t2/50 = √(2 / 32)

t2/50 = √(1 / 16)

t2/50 = 1 / 4

Cross multiply

t2 x 4 = 50 x 1

Divide both side by 4

t2 = 50 / 4

t2 = 12.5secs

the answer to your question is c.

if you read the house of usher you should know that the house was haunted

there are no statements provided but here is why:

sulfur belongs to group 16 because it can be found in nature whether it is in a free or combined state.

hope this