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Neporo4naja [7]
3 years ago
6

Enter your answer in the provided box. Find the pH of a buffer that consists of 0.34 M HBrO and 0.89 M KBrO (PK, of HBrO = 8.64)

. pH =
Chemistry
1 answer:
11111nata11111 [884]3 years ago
6 0

Answer : The  pH of buffer is 9.06.

Explanation : Given,

pK_a=8.64

Concentration of HBrO = 0.34 M

Concentration of KBrO = 0.89 M

Now we have to calculate the pH of buffer.

Using Henderson Hesselbach equation :

pH=pK_a+\log \frac{[Salt]}{[Acid]}

pH=pK_a+\log \frac{[KBrO]}{[HBrO]}

Now put all the given values in this expression, we get:

pH=8.64+\log (\frac{0.89}{0.34})

pH=9.06

Therefore, the pH of buffer is 9.06.

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<u>Explanation:</u>

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The isotopic representation of an atom is: _Z^A\textrm{X}

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1) Fe

The atom given to us is iron. It is present in Group 8 and period 4 of the periodic table. The atomic number of iron is 26

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The atom given to us is beryllium. It is present in Group 2 and period 2 of the periodic table. The atomic number of beryllium is 4

3) Kr

The atom given to us is krypton. It is present in Group 18 and period 4 of the periodic table. The atomic number of iron is 36

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1) _{24}^{53}\textrm{Cr}

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The number of protons, electrons and neutrons for the given element are 44, 44 and 59 respectively

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tangare [24]

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\boxed{\text{23.4 mmHg}}

Explanation:

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T = 25 °C

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Standard pressure is 1 bar.

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