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kvasek [131]
2 years ago
14

Write a balanced equation for the neutralization reaction between the following (you do not need to include states of matter):

Chemistry
1 answer:
givi [52]2 years ago
8 0

Answer:

Both have the same balance on a weight with. 2 dimensional figures on the area formula

Explanation:

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What is the pH of 0.10 M NaF(aq). The Ka of HF is 6.8 x 10-4
dsp73

<u>Given information:</u>

Concentration of NaF = 0.10 M

Ka of HF = 6.8*10⁻⁴

<u>To determine:</u>

pH of 0.1 M NaF

<u>Explanation:</u>

NaF (aq) ↔ Na+ (aq) + F-(aq)

[Na+] = [F-] = 0.10 M

F- will then react with water in the solution as follows:

F- + H2O ↔ HF + OH-

Kb = [OH-][HF]/[F-]

Kw/Ka = [OH-][HF]/[F-]

At equilibrium: [OH-]=[HF] = x and [F-] = 0.1 - x

10⁻¹⁴/6.8*10⁻⁴ = x²/0.1-x

x = [OH-] = 1.21*10⁻⁶ M

pOH = -log[OH-] = -log[1.21*10⁻⁶] = 5.92

pH = 14 - pOH = 14-5.92 = 8.08

Ans: (b)

pH of 0.10 M NaF is 8.08

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3 years ago
Is this molecule polar or nonpolar?
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Name at least 4 other gases in the atmosphere besides oxygen and nitrogen
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<em>Hydrogen.</em>

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Explanation:

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