Question

Part A

Part complete

Calculate [H3O+] in the following aqueous solution at 25 ∘C : [OH−]= 5.3×10⁻⁴ M .

Express your answer using two significant figures.

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Part B

Part complete

Calculate [H3O+] in the following aqueous solution at 25 ∘C : [OH−]= 2.4×10⁻¹² M .

Express your answer using two significant figures.

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[H3O+] [ H 3 O + ] =	nothing	M

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Part C

Part complete

Calculate [H3O+] in the following aqueous solution at 25 ∘C : [OH−]= 2.2×10⁻² M .

Express your answer using two significant figures.

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[H3O+] [ H 3 O + ] =	nothing	M

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Part D

Part complete

Classify the solutions as acidic or basic.

Drag the appropriate items to their respective bins.

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[H3O+] [ H 3 O + ] =	nothing	M

Reset Help [OH−]= 5.3×10−4 M [ O H Superscript-] = 5.3 times 10 Superscript -4 ~ M [OH−]=2.2×10−2 M [ O H Superscript-] = 2.2 times 10 Superscript -2 ~ M [OH−]=2.4×10−12 M [ O H Superscript-] = 2.4 times 10 Superscript -12 ~ M Acidic solution Basic solution

Answer 1

A) The concentration of H3O + is calculated:

[H3O +] = 10 ^ -14 / [OH-] = 10 ^ -14 / 5.3x10 ^ -4 = 1.89x10 ^ -11 M

B) The concentration of H3O + is calculated:

[H3O +] = 10 ^ -14 / [OH-] = 10 ^ -14 / 2.4x10 ^ -12 = 4.17x10 ^ -3 M

C) The concentration of H3O + is calculated:

[H3O +] = 10 ^ -14 / [OH-] = 10 ^ -14 / 2.2x10 ^ -2 = 4.55x10 ^ -13 M

D) To:

[OH-] = 5.3x10 ^ -4 M

Basic solution

[OH-] = 2.2x10 ^ -2 M

Basic solution

[OH-] = 2.4x10 ^ -12 M

Acid solution

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