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Sergio [31]
3 years ago
5

How do i solve these chemistry problems

Chemistry
1 answer:
Ivahew [28]3 years ago
8 0

What you have to do is balance the chemical equations to make sure everything is even on both sides. If you want me to help you answer the questions comment back

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In which state of matter does heat travel fastest and slowest?
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Explanation:

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By how much will the ph change if 0.025 mol of hcl is added to 1.00 l of the buffer that contains 0.15 m hc2h3o2 and 0.25 m c2h3
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According to the reaction equation:

              CH3COO-  + H+   → CH3COOH 

initial         0.25                             0.15

change     - 0.025                          + 0.025

Equ         (0.25-0.025)                 (0.15 + 0.025)

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∴ [ CH3COOH] = 0.175 mol / 1L = 0.175 M 

Pka = -㏒ Ka 

       = -㏒ 1.8 x 10^-5
       
       = 4.74

from H-H equation we can get the PH value:

PH = Pka + ㏒ [acetate / acetic acid]

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3 years ago
What is a small description of a molecule
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