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NEED HELP ASAP!!! 100 POINTS!!

Before tackling this problem, be sure you know how to find the antilog of a number using a scientific calculator.
A solution has a pH of 5.4. Write the formula you will use to calculate the [H+] and then show all your work leading to the determination of [H+].

Please provide the answer and step by step.

User Bes Ley
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2 Answers

1 vote

Question:

Before tackling this problem, be sure you know how to find the antilog of a number using a scientific calculator.

A solution has a pH of 5.4. Write the formula you will use to calculate the [H+] and then show all your work leading to the determination of [H+].

ANSWER:

3.98*10^-6 mol dm-3

Step-by-step explanation:

pH= -log[H+]

-pH=log[H+]

[H+]= antilog -pH

[H+]=10^-5*4

[H+]=3.98*10-6 mol dm^-3

Hope this helps :)

User Skillzore
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4 votes

Answer:

3.981 x 10⁻⁶

Explanation:

∵ pH = - log[H⁺]

∴ 5.4 = - log[H⁺]

∴ log[H⁺] = - 5.4

∴ [H⁺] = 3.981 x 10⁻⁶

User Pauldoo
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