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adoni [48]
3 years ago
14

Are the following solutions acidic, basic, ot neutral.

Chemistry
1 answer:
Slav-nsk [51]3 years ago
6 0

Answer:

1) Basic

2) Basic

3) Acidic

Explanation:

pH of a solution is a measure of the H3O+ ions in the solution and hence reflects its acidity.

pH = -log[H3O+]

Solutions are classified as acidic, basic or neutral based on the pH range

-pH < 7, acidic

- pH = 7, neutral

- pH > 7, basic

1) [H3O+] = 2.5*10^-9M

pH = -log[H3O+]=-log[2.5*10^{-9}]=8.60

Since pH > 7, solution is basic

2)[OH-] = 1.6*10^-2M

pOH = -log[OH-]=-log[1.6*10^{-2}]=1.80

pH = 14 - pOH = 14 - 1.80 =12.2

Since pH > 7, solution is basic

3) [H3O+] = 7.9*10^-3M

pH = -log[H3O+]=-log[7.9*10^{-3}]=2.10

Since pH < 7, solution is acidic

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3 years ago
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Explanation:

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now see simple solution

molality is denoted by m

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8 0
2 years ago
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Most modern medications are given in doses of milligrams. Thyroid medications, however, are typically given in doses of microgra
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0.125 mg

Explanation:

<em>The correct answer would be 0.125 mg</em>

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3 years ago
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