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22 July, 16:16

1. How many moles of AgNO3 are in 15.0 g?

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  1. 22 July, 16:18
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    Answer: 0.088 moles

    Explanation:

    Parameters given:

    Mass of AgNO3 = 15.0g

    To know the number of moles, given such parameter, we need to find and use the molecuar weight formular. The molecuar weight is mass per mole

    Molecular weight = mass / mole

    Molecular weight of AgNO3

    Ag + N + 03

    107.8682 + 14.0067 + 15.9994 (3)

    (Note, that the weight of each compounds are standards)

    = 169.8731g/mole

    Using our molecular weight formular

    Moles of AgNO3 in 15.0g

    Let Number of Moles be represented as Y

    169.8731g/mole = 15.0g / Y

    Therefore,

    Y = 169.8731 / 15.0g

    Y = 0.088 moles

    No of Moles of AgNo3 in 15.0g = 0.088moles
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