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balu736 [363]
3 years ago
5

When chemical x is reduced, which of these expressions would be an accurate representation of its reduced state?

Chemistry
1 answer:
Elodia [21]3 years ago
7 0
Is this what you wanted if not I can provide with more info:                                       reduction is the part of an Oxidation–Reduction reaction in which there is a gain of electrons by a species or a decrease of the oxidation number of an atom. So C, there is no change so NOT a reduced state. In A the oxidation number has to go up by 2 for oxygen's oxidation number is always -2, so the leaves B, were the bond with the hydrogen atom would donate an electron, thus reducing X

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At 100 degrees Celsius, the ion product for pure water is Kw= 51.3*10^-14. What is the pOH of water at this temperature? A) 7.00
Levart [38]

7.86 is the pOH of water at this temperature of 100 degrees celsius.

Option E is the right answer.

Explanation:

Data given:

Kw = 51.3 x 10^{-14}

pOH = ?

we know that pure water is neutral and will have pH pf 7.

The equation for relation between Kw and H+ and OH- ion is given by:

Kw = [H+] [OH-}

here the concentration of H+ ion and OH- ion is equal

so, [H+]= [OH-]

Putting the values in the equation of Kw

pKw = -log[Kw]

pKw = -log [51.3 x 10^{-14}]

pKw = 12.28

since H+ ion OH ion concentration is equal the pH of water is half i.e. 6.14

Now, pOH is calculated by using the equation:

14 = pOH + pH

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pOH = 7.86

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V=\frac{147g}{\frac{1.020g}{mL}}

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Therefore, the volume of this urine sample is 144.12mL.

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