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Verdich [7]
2 years ago
9

Which layer in the diagram was the original layer?

Chemistry
2 answers:
tatiyna2 years ago
4 0
I’m almost sure it’s D but i could be wrong
Lynna [10]2 years ago
4 0
The correct answer is bedrock.
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What is the pH of a solution with an [H+] of (a) 5.4 x 10-10, (b) 4.3 x 10-5, (c) 5.4 x 10-7?
IgorLugansk [536]

Answer:

a. 9.2

b. 4.4

c. 6.3

Explanation:

In order to calculate the pH of each solution, we will use the definition of pH.

pH = -log [H⁺]

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(c) [H⁺] = 5.4 × 10⁻⁷ M

pH = -log [H⁺] = -log 5.4 × 10⁻⁷ = 6.3

Since pH < 7, the solution is acid.

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