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liq [111]
3 years ago
11

The pH of a solution is 9.63 ± 0.03 . What is the concentration of H + in the solution and its absolute uncertainty?

Chemistry
1 answer:
Helga [31]3 years ago
8 0

Explanation:

The pH of the solution is 9.63 ± 0.03.

we know that

pH= -log[H+]

⇒[H+] =10^{-pH}

=10^{-9.63} = 2.34\times10^{-10}

Now to find absolute error we use the formula

Absolute error/[H+] =ln10(uncertainity)

Absolute error = ln10×[H+] ×0.03

=ln10\times2.34\times10^{-10}\times0.03

= 9.45\times10^{-12}

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From the stoichiometry of the balanced reaction equation, the correct statement are;

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<h3>What is combustion?</h3>

The term combustion refers to the burning of fossil fuels for the purpose of energy production. The equation for reaction is CH4 + 2O2 ---> CO2 + 2H2O.

Using this equation as shown, the true statements are;

  • For every 1 molecule of methane CH4 that reacts, 2 molecules of H2O are produced.
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Learn more about combustion: brainly.com/question/15117038

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nikklg [1K]

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Uranium-238 (U-238) decays into lead-206 (Pb-206). Which of the following is a true statement?
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Answer:

a=0.4\ m/s^2

Explanation:

1. Given that,

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