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Maslowich
3 years ago
10

Given that pH + pOH = 14, what is the pH of a solution if its pOH is 12.4???

Chemistry
1 answer:
Darya [45]3 years ago
3 0
<span>pH + pOH = 14

</span><span>What is the pH of a solution if its pOH is 12.4?

pH = 14 - 12.4 

pH = 1.6</span>
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An isotope with a mass number of 193 has 116 neutrons. What is the atomic number of this
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Answer:

Atomic number of this  isotope = 77

Explanation:

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We need to find the atomic no of this isotope.

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3 years ago
Two identical 732.0 L tanks each contain 212.0 g of gas at 293 K, with neon in one tank and nitrogen in the other. Based on the
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20.0 g of bromic acid, HBrO3, is reacted with excess HBr.
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After Rounding off The percentage yield is 64%

<h3>What is Percentage Yield ?</h3>

It is the ratio of actual yield to theoretical yield multiplied by 100% .

It is given in the question

20.0 g of bromic acid, HBrO3, is reacted with excess HBr.

The reaction is

HBrO₃ (aq) + 5 HBr (aq) → 3 H₂O (l) + 3 Br₂ (aq)

Actual yield = 47.3 grams

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Moles of Bromic Acid = 20/128.91 = 0.155 mole

Mole fraction ratio of Bromic Acid to Bromine is 1 :3

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After Rounding off The percentage yield is 64% .

To know more about Percentage Yield

brainly.com/question/22257659

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