how many oxygen molecules in 2.3×10-⁸g of molecular oxygen ​

Question

how many oxygen molecules in 2.3×10-⁸g of molecular oxygen ​

in progress 0
Ben Gia 5 years 2021-08-29T03:08:55+00:00 1 Answers 26 views 0

Answers ( )

  1. sori
    0
    2021-08-29T03:10:11+00:00
    Reply

    Answer:

    6.321 × 10^22

    Explanation:

    Mass of Oxygen =

    3.36

    g

    Molar mass of oxygen (

    O

    2

    ) = 16 x 2 =

    32

    g

    m

    o

    l

    −

    Total molecules in oxygen = Mass in grams/Molar mass x

    N

    A

    =

    3.36

    32

    x

    6.02

    x

    10

    23

    =

    6.321

    x

    10

    22

    Note:

    N

    A

    (Avagadro’s number) =

    6.02

    x

    10

    23

    Hope it helps…

Leave an answer

Browse

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