If you have 140. ml of a 0.100 m mops buffer at ph 7.20 and you add 4.00 ml of 1.00 m hcl, what will be the new ph? (the pka of mops is 7.20.)

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07-09-2022
Chemistry

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If you have 140. ml of a 0.100 m mops buffer at ph 7.20 and you add 4.00 ml of 1.00 m hcl, what will be the new ph? (the pka of mops is 7.20.)

Sagot :

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Tutorconsortium364 Tutorconsortium364 · Answer 1 · 2022-09-10T02:43:42-04:00

The pH will be 7.18.

What is buffer solution?

A buffer solution is an aqueous combination of a weak acid and either its conjugate base or base itself. When a modest amount of a strong acid or base is applied to it, the pH hardly changes at all.

Acidic Buffer: This substance is created when a strong base is combined with a weak acid and its salt.

Basic Buffer: This substance is created when a strong acid and a weak base with its salt are combined.

pH = pKa + log {[salt]- 0.002 moles HCl / [Acid]+ 0.002moles HCl

= 7.2 + log {0.1 -0.002/ 0.1+0.002}

pH = 7.18

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Sagot :

What is buffer solution?

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