How many molecules of methane, CH4, are contained in a 0.900 gram sample? 0.0563 3.39 x 1022

Question

How many molecules of methane, CH4, are contained in a 0.900 gram sample?

0.0563

3.39 x 1022

1.26

1.02 x 1023

Item at position 24

in progress 0
Philomena 2 months 2021-07-22T15:40:22+00:00 1 Answers 7 views 0

Answers ( )

    0
    2021-07-22T15:41:39+00:00

    Answer:

    MOLAR MASS=12+4

    =16 gmol^1

    number of moles=Mass/ molar mass

    =0.900g/16gmol^-1

    =0.05625 mol

    the answer is first option

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )