Answer:
[tex]H = 0.0000001[/tex]
Step-by-step explanation:
The acidity is:
pH = -logH
If a substance has a pH of 7, what is its H value?
This means that pH = 7, we have to find h.
[tex]-\log{H} = 7[/tex]
[tex]\log{H} = -7[/tex]
We apply the following logarithm property:
[tex]10^{\log{a}} = a[/tex]
So
[tex]10^{\log{H}} = 10^{-7}[/tex]
[tex]H = 0.0000001[/tex]
The concentration value of the substance is 0.0000001mol/dm^3
The formula for calculating the acidity of a substance is given by pH=−log[H]
This formula can also be written as:
[tex]{H} = 10^{-pH}[/tex]
Given the following parameter;
pH = 7
Substitute the parameters into the formula to have:
[tex]{H} = 10^{-pH}\\{H} = 10^{-7}\\H=0.0000001mol/dm^3[/tex]
Hence the concentration value of the substance is 0.0000001mol/dm^3
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