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torisob [31]
3 years ago
7

calculate the atomic mass of carbon if the two common isotopes of carbon have masses of 12.000 amu (98.89% abundance) and 13.003

amu (1.11% abundance)
Chemistry
1 answer:
Bingel [31]3 years ago
6 0

12.01 amu

Work:

(12.000 × .9889) + (13.003 × .0111) = 12.01

  • turn the precents into decimals

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What is the equation for figuring out the Atomic Mass
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Answer:

Atomic mass = mass of protons + mass of neutrons

Explanation:

In an element atomic mass of an atom can be calculated by adding the mass of protons and neutrons

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0.023 M solution of perchloric acid
kogti [31]
The original question is to find the pH and the pOH of 0.023 M of perchloric acid.

Answer:
pH = 1.638
pOH = 12.362

Explanation:
1- getting the pH:
pH can be calculated using the following rule:
pH = -log[H+]
Since the given solution is an acid, this means that [H+] is the same as the concentration of the solution.
This means that:
[H+] = 0.023
Substitute in the above equation to get the pH as follows:
pH = -log[0.023]
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2- getting the pOH:
We know that:
pH + pOH = 14
We have calculated that pH = 1.638.
Substitute in the above equation to get the pOH as follows:
pOH + 1.638 = 14
pOH = 14 - 1.638
pOH = 12.362

Hope this helps :)
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3 years ago
How come there is only 3 C5H12 isomers?
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Pls help! Polonium has a large, unstable nucleus. Through which process is it most likely to become stable?
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The process through which Polonium is most likely to become stable is: B. alpha decay.

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In conclusion, we can deduce from the above chemical equation that Polonium is most likely to become stable through an alpha decay.

Read more: brainly.com/question/18214726

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3 years ago
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What does the atomic mass of a neutral atom tell you?
ExtremeBDS [4]

Answer:

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Explanation:

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