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Allisa [31]
3 years ago
12

Copper has two isotopes. The one isotope (Copper-63) has an abundance of 69.2% and a mass of 62.930 amu. The second isotope (Cop

per-65) has an abundance of 30.8% and a mass of 64.928 amu. Calculate the average atomic mass of copper. 62.930 amu 63.545 amu 63.929 amu 64.928 amu
Chemistry
1 answer:
Step2247 [10]3 years ago
8 0
Multiply the percentage by the mass for both and add them to get 63.545 amu 
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The pOH of a solution is 9.21. Calculate the hydrogen ion concentration of the solution. Be sure to report your answer to the co
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Answer:

[OH-] = 6.17 *10^-10

Explanation:

Step 1: Data given

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Step 3: Check if it's correct

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Mass = 5 kg

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