Answer: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
