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30 April, 06:05

How many moles are there in 0.67 L of a 0.50 M KBr solution?

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  1. 30 April, 06:20
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    Answer: 0.335 moles

    Explanation:

    Given that,

    Amount of moles of KBr solute (n) = ?

    Volume of KBr solution (v) = 0.67 L

    Concentration of KBr solution (c) = 0.50M

    Since concentration (c) is obtained by dividing the amount of solute dissolved by the volume of solvent, hence

    c = n / v

    make n the subject formula

    n = c x v

    n = 0.50M x 0.67L

    n = 0.335 moles

    Thus, there are 0.335 moles of KBr in 0.67 L of a 0.50 M KBr solution
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