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lidiya [134]
3 years ago
8

What is the PH of a 7.5x10^-3 M OH solution

Chemistry
2 answers:
Sav [38]3 years ago
7 0

Answer : The pH of a solution is, 11.88

Explanation:  Given,

Concentration of OH^- ion = 7.5\times 10^{-3}M

First we have to calculate the pOH.

Formula used :

pOH=-\log [OH^-]

pOH=-\log (7.5\times 10^{-3})

pOH=2.12

Now we have to calculate the pH.

Formula used :

pH+pOH=14\\\\pH=14-pOH\\\\pH=14-2.12=11.88

Therefore, the pH of a solution is, 11.88

Triss [41]3 years ago
5 0
pH: 11.8750612634
pOH: 2.12493873661
[H+]: 1.33333333333E-12
[OH-]: 0.0075
BASE
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If you have 1.1 moles of magnesium nitrate then how many grams is that
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Answer: 162.8 grams

Explanation:

Magnesium nitrate has a chemical formula of Mg(NO3)2.

Given that:

Number of moles of Mg(NO3)2 = 1.1 moles

Mass in grams of Mg(NO3)2 = ?

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3 0
3 years ago
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