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Lena [83]
3 years ago
6

Please help with this, i don't really get how to do this

Chemistry
1 answer:
LuckyWell [14K]3 years ago
8 0
#4 and #5:
To find pH given concentration of H+ or H30+
pH = - log (H+ or H30+ M)

To find pH given concentration of OH-
Since you already found the pH for this (in #4), you subtract #4's answer from 14.
14 - (pH) = pOH
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In short, Your Answer would be 5 mL

Hope this helps!
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setup 1 : to the right

setup 2 : equilibrium

setup 3 : to the left

<h3>Further explanation</h3>

The reaction quotient (Q) : determine a reaction has reached equilibrium

For reaction :

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\tt Q=\dfrac{C]^c[D]^d}{[A]^a[B]^b}

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Q <K = solution has not occurred precipitation, the ratio of the products to reactants is less than the ratio at equilibrium. The reaction moved to the right (products)

Q = Ksp = saturated solution, exactly the precipitate will occur, the system at equilibrium

Q> K = sediment solution, the ratio of the products to reactants is greater than the ratio at equilibrium. The reaction moved to the left (reactants)

Keq = 6.16 x 10⁻³

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Setup 1 :

\tt Q=\dfrac{0.0064^2}{0.098}=0.000418=4.18\times 10^{-4}

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Setup 2 :

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Setup 3 :

\tt Q=\dfrac{0.230^2}{0.420}=0.126

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This the answer have a good day

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