7. If the pOH of an RbOH solution is 6.32, what is the concentration (molarity) of the base?

Chemistry

1 answer:

liubo4ka [24]3 years ago

6 0

4.79 x 10⁻⁷moldm⁻³

Explanation:

Given parameters:

pOH of RbOH = 6.32

Unknown:

Molarity of the base = ?

Solution:

The pH or pOH scale is used for expressing the level of acidity alkalinity of aqueous solutions.

pOH = -log[OH⁻]

we know the pOH to be 6.32

6.32 = -log[OH⁻]

[OH⁻] = inverse log₁₀(6.32)

[OH⁻] = 4.79 x 10⁻⁷moldm⁻³

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