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Elena L [17]
3 years ago
5

What principle chemistry​

Chemistry
1 answer:
NNADVOKAT [17]3 years ago
8 0
Is this a question ?
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What feature appears at point A on the topographic map?<br> depression<br> swamp<br> road<br> school
Elanso [62]

Answer: B: swamp

Explanation:

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How many atoms are in 1.14 mol of sulfur trioxide
yawa3891 [41]
2.75 x 10^24

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3 years ago
Using the average initial pH of your acetic acid solutions (2.96), and the average molarity of those solutions(.0602), calculate
Orlov [11]

Answer : The value of Ka for acetic acid is,  2.03\times 10^{-5}

Explanation :

The chemical formula of acetic acid is, CH_3COOH.

The chemical equilibrium reaction will be:

CH_3COOH\rightleftharpoons CH_3COO^-+H^+

Given:

pH = 2.96

First we have to calculate the concentration of hydrogen ion.

pH=-\log [H^+]

2.96=-\log [H^+]

[H^+]=1.096\times 10^{-3}M

That means,

[H^+]=[CH_3COO^-]=1.096\times 10^{-3}M

[CH_3COOH]=0.0602-(1.096\times 10^{-3})=0.0591M

The expression for reaction is:

K_a=\frac{[CH_3COO^-][H^+]}{[CH_3COOH]}

K_a=\frac{(1.096\times 10^{-3})\times (1.096\times 10^{-3})}{0.0591}

K_a=2.03\times 10^{-5}

Thus, the value of Ka for acetic acid is,  2.03\times 10^{-5}

3 0
3 years ago
4.
telo118 [61]

The series which is in order of increasing boiling point is CH3CH2CH3 CH3COCH3 CH2CH2CH3OH

However, the boiling point of an organic substance is the temperature at which the vapor pressure of the liquid organic substance equals the pressure surrounding the liquid and the liquid changes into a vapor.

<h3>What are organic compounds?</h3>

Organic compounds are substance containing carbon and hydrogen. Some few organic compounds include:

  • Alkanes
  • Alkenes
  • Alkynes
  • Alkanols
  • Alkanals
  • Alkanones
  • Esters
  • Amines

So therefore, the series which is in order of increasing boiling point is CH3CH2CH3 CH3COCH3 CH2CH2CH3OH

Learn more about organic compounds:

brainly.com/question/704297

8 0
2 years ago
Some studies have found that when a person mimics an angry expression, their temperature actually rises.
posledela
The correct answer is A) True
5 0
3 years ago
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