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shusha [124]
3 years ago
15

Which of the following gases will diffuse the fastest at room temperature?

Chemistry
1 answer:
maw [93]3 years ago
4 0

Answer:

I am pretty sure that it is A. H2.

Explanation:

Sorry if it's wrong.

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The pka value for the carboxylic acid group in acetic acid is 4.75. write the predominant structure of acetic acid at (a ph=1, (
Scorpion4ik [409]
Hello!

A) At pH=1

This pH is lower than the value for the pKa, so Acetic acid wouldn't be ionized, but the equilibrium would be displaced to CH₃COOH

CH₃COOH ⇄ CH₃COO⁻ + H₃O⁺ (equilibrium displaced to the left)

The chemical structure for CH₃COOH is the first one in the attached images.

B) At pH=7

This pH is higher than the value for the pKa, so Acetic acid would be ionized, and the equilibrium would be displaced to CH₃COO⁻

CH₃COOH ⇄ CH₃COO⁻ + H₃O⁺ (equilibrium displaced to the right)

The chemical structure for CH₃COO⁻ is the second one in the attached images.

Have a nice day!

7 0
3 years ago
A certain first-order reaction has a half-life of 20.0 minutes. How much time is required for this reaction to be 75% complete?
ryzh [129]

Answer:

X = 2

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Question 3 of 10
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salt water 97%

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How many electrons would Lithium with a -1 charge have?
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Answer:

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Explanation:

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Write three characteristics of mandleef's periodic table?​
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The periodic table is composed of seven horizontal rows or periods and is numbered between 1 and 7. There is a regular gradation in the properties of elements in the horizontal rows(periods) from left to right. The periodic table is composed of eight vertical columns or groups. They are numbered between 1 to 8.

Explanation:

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