Question

Calculate the [H3O+] value of each aqueous solution.NaOH with [OH−]=1.0×10−2M Express your answer using two significant figures.

Answer 1

Answer

[H₃O⁺] = 1.0 x 10⁻¹² M

Explanation

Given that:

[OH⁻] = 1.0 x 10⁻² M

What to find:

To calculate the [H₃O⁺] of the NaOH solution.

Step-by-step solution:

The [H₃O⁺] of the NaOH solution can be calculated using the relation given below:

[H₃O⁺] x [OH⁻] = 1.0 x 10⁻¹⁴

Therefore, the [H₃O⁺] will be:

$.\left[H₃O⁺\right]=\frac{1.0\times10^{-14}}{[OH^-]}=\frac{1.0\times10^{-14}}{1.0\times10^{-2}}=1.0\times10^{-12}\text{ }M$

Hence, the [H₃O⁺] value of the NaOH aqueous solution is 1.0 x 10⁻¹² M