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Ymorist [56]
3 years ago
15

In an oxidation half-reaction, which amount is shown?

Chemistry
2 answers:
Advocard [28]3 years ago
5 0

Answer: option C

Explanation:

Oxidation means you loss of electons (LEO) and Reduction is gain of electrons.

Example: sodium gets oxidized by the loss of one electron as shown below

Na------> Na+ + 1e-

Here Na lost one electron hence it is oxidation

Change in oxidation no: 0 to +1

Tatiana [17]3 years ago
4 0
Hi,
The answer should be C.

Hope this helps, if you’d like further explanation please let me know.
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Use the Henderson-Hasselbalch equation and your knowledge of ionization to help you answer this question. Aspirin is a weak acid
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Answer:

The protonated form is predominant when aspirin is absorbed more readily. The ratio of conjugate base to acid is 1 to 100.

Explanation:

Aspirin is more readily absorbed when it is protonated, that is when pH is lower than pKa (<em>more H⁺ available in the medium</em>). We can confirm this using Henderson-Hasselbalch equation for pH = 1.5:

pH = pKa +log(\frac{conjugate base}{weak acid} )\\1.5=3.5 +log(\frac{conjugate base}{weak acid} )\\-2.0=log(\frac{conjugate base}{weak acid} )\\10^{-2.0} =\frac{conjugate base}{weak acid}\\\frac{conjugate base}{weak acid}=0.01=\frac{1}{100}

When aspirin is absorbed more readily the ratio of conjugate base to acid is 1 to 100, being the acid the <em>predominant</em> form.

6 0
3 years ago
In 1986 an electrical power plant in taylorsville, georgia, burned 8,376,726 tons of coal, a national record at that time. assum
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<span>C + O2 → CO2 (8,376,726 tons) x (0.80) / (12.01078 g C/mol) x (1 mol CO2/ 1 mol C) x (44.00964 g CO2/mol) = 24,555,054 tons CO2</span>
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Does a substance that heats up quickly have a high or a low specific heat capacity
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How many resonance structures can be drawn for N2O5 (no N-N bond) (minimal formal charge)?
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Given: C3H8(g) + O2(g) ----> CO2 (g) + H2O (g)

Step : Put a 3 in front of CO2 (g) to balance C

=> C3H8(g) + O2(g) ----> 3CO2 + H2O to balance H

Step 2: Put a 4 in front of H2O

=> C3H8 (g) + O2(g) -----> 3CO2 (g) + 4H2O (g)

Step 3: Given that there are 3*2 + 4 = 10 O to the right side, put a 5 in front of O2 to balance O:

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