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pychu [463]
3 years ago
10

Why is the mass of an iron atom different from the mass of a copper atom?

Chemistry
1 answer:
Jobisdone [24]3 years ago
6 0
They have different number of Neutrons and protons, so their masses are different

Hope this helps!
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nirvana33 [79]

Answer:

pH = 12.15

Explanation:

To determine the pH of the HCl and KOH mixture, we need to know that the reaction is  a neutralization type.

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We need to determine the moles of each compound

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M = mmol / V (mL) → 40 mL . 0.10 M = 4 mmoles of KOH

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3 m       4 m                       -

             1 m                      3 m

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