Respuesta :

Edufirst

Answer:

  •    M = 0.0409 M

Explanation:

1) Data:

a) Molarity, M = ?

b) Number of moles, n = 0.400 mol

c) Volume, V = 9.79 liters

2) Formula:

The definition of molarity is number of moles of solute per volume of solution in liters.

  •   M = n / V (in liters)

3) Calculations:

  •    M = 0.400 mol / 9.79 liter = 0.04086 M

You  must use three significant digits to report the answer correctly, so it is M = 0.0409 M.

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