cheerthi16

16.10.2019 • 

Chemistry

Ph is a logarithmic scale used to indicate the hydrogen ion concentration, [h+], of a solution: ph=−log[h+] due to the autoionization of water, in any aqueous solution, the hydrogen ion concentration and the hydroxide ion concentration, [oh−], are related to each other by the kw of water: kw=[h+][oh−]=1.00×10−14 where 1.00×10−14 is the value at approximately 297 k. based on this relation, the ph and poh are also related to each other as 14.00=ph+poh the temperature for each solution is carried out at approximately 297 k where kw=1.00×10−14. part a 0.35 g of hydrogen chloride (hcl) is dissolved in water to make 2.5 l of solution. what is the ph of the resulting hydrochloric acid solution?

Ответ:

shemarmcdonald4662

07.01.2022

Chemistry

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pH = 2,4

Explanation:

pH is defined as a measure of acidity or alkalinity of a solution based on H⁺ concentration

The HCl dissociates in water thus:

HCl → H⁺ + Cl⁻

That means that moles of HCl are the same than H⁺.

0,35gHCl = 9,6x10⁻³ moles HCl ≡ moles H⁺

H⁺ molarity is: = 3,84x10⁻³M

As pH = -log [H⁺]

pH = 2,4

I hope it helps!

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Ответ:

changav36832

28.03.2021

Chemistry

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Just add a plenty of dots in the first one and very few dots in the second one

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