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10 January, 18:23

How many moles of KNO3 are needed to make 600 ml of a 1.3M solution?

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  1. 10 January, 20:31
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    M = n / V

    Where, M is molarity (M or mol/L), n is number of moles of the solute (mol) and V is volume of the solution (L).

    Here the solute is KNO₃.

    The given molarity is 1.3 M

    This means 1L of solution has 1.3 moles of KNO₃.

    Hence moles in 600 mL = 1.3 M x 0.6 L = 0.78 mol

    Therefore to make 1.3 M KNO₃ solution, needed moles of KNO₃ is 0.78 mol
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