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11 April, 18:11

How many moles are there in 2.6 x 10^24 atoms of Calcium?

a. 7.0 x 10-24 moles of Ca

b. 4.4 moles

c. 168.36 moles

d ...10 moles

+2
Answers (1)
  1. 11 April, 21:53
    0
    There are

    6.022140857

    (

    74

    )

    *

    10

    23

    calcium

    atoms

    in 1 mole of

    C

    a

    .

    Explanation:

    You have specified

    2.1

    *

    10

    24

    calcium atoms.

    So

    2.1

    *

    10

    24



    calcium atoms

    6.022

    *

    10

    23



    calcium atoms mole

    1=? mol
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