what amount of oxygen gas in moles contains 1.8×10^22 molecules?​

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what amount of oxygen gas in moles contains 1.8×10^22 molecules?​

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Thu Nguyệt 4 years 2021-08-17T14:04:24+00:00 1 Answers 89 views 0

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  1. RobertKer
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    2021-08-17T14:05:57+00:00
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    Answer:

    0.03 moles

    Explanation:

    To find the number of moles in a substance given it’s number of entities we use the formula

    n = \frac{N}{L} \\

    where n is the number of moles

    N is the number of entities

    L is the Avogadro’s constant which is

    6.02 × 10²³ entities

    We have

    n = \frac{1.8 \times {10}^{22} }{6.02 \times {10}^{23} } \\ = 0.02990...

    We have the final answer as

    0.03 moles

    Hope this helps you

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