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Semmy [17]
3 years ago
7

"whenever a stress is applied to a system at equilibrium, the equilibrium shifts in such way as to undo the effect of the stress

imposed"
Chemistry
1 answer:
Nady [450]3 years ago
3 0
IDK I JUST NEED POINTS, BTW IM VERY DUMB
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A 40.0 mL sample of 0.18 M HCI is titrated with 0.36 M CoHsNH2. Dctermine the pH at these points: At the beginning (before base
Whitepunk [10]

Answer:

at the beginning:

pH = 0.745

Explanation:

HCl is a strong acid, so:

  • HCl + H2O  → H3O+  +  Cl-

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before base is added:

∴ [ H3O+ ] ≅ <em>C </em>HCl = 0.18 M

⇒ pH = - Log [ H3O+ ] = - Log ( 0.18 )

⇒ pH = 0.745

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3 years ago
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strojnjashka [21]

Answer:

MRCORRECT has answered the question

Explanation:

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3 years ago
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Elan Coil [88]
<h3><u>Answer;</u></h3>

NH3/NH4+

<h3><u>Explanation;</u></h3>

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HNO3 is the acid; while NO3- is the conjugate base  

  • The conjugate base of a Brønsted-Lowry acid is species that is formed after an acid donates a proton while the conjugate acid of a Brønsted-Lowry base is the species formed after a base accepts a proton.
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