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2 years ago

Check all reasons why a book was used.

1 answer:

4 0

We can confirm that for the experiments regarding Boyle's law, the book was used to increase pressure on the gas and add additional weight.

<h3>Why is the book used in these experiments?</h3>

The book is used for the reasons described in options 1 and 2 of the question. The book supports additional weights on the container, meaning that through these added weights we can increase the pressure being applied to the gas and see how said pressure affects the volume of a gas.

Therefore, we can confirm that the book was used to increase pressure on the gas and add additional weight.

To learn more about Boyle's law visit:

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20.00 mL of a 0.077 M solution of silver nitrate, AgNO3

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What happens to the boiling point of hydrocarbon compounds when the number of carbon atom increases

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So therefore your answer choice will increase. (B)

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Identify the gas law that applies to the following scenario: A 36.5 liter balloon holding 2.9 moles of carbon dioxide leaks. If

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<h3>Avogadro's Law </h3>

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Does a fart taste like it smells?

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3 years ago

The following is a list of weak acids and their Ka values.HOCl hypochlorous acid 3.5 x 10^-8H2S hydrogen sulfide 1.1 x 10^-7HCN

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Answer:

(a) HNO₂ nitrous acid 4.5 x 10^-4 is strong acid

(b) Ka expression $Ka = \frac{[H^{+}][NO_{2} ^{-}] }{[HNO_{2}] }$

(c) List of Conjugate Bases

OCl⁻, S²⁻, CN⁻, NO₂⁻

(d) cyanide ion is strongest conjugate base.

(e) pH and pOH of Hypochlorous acid = 4.22 & 9.77

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(a) Ka and acidity are directly proportional to each other

hence nitrous acid is the strongest acid since it has highest Ka value.

(b) Ka expression of nitrous acid

HNO₂ → H⁺ + NO₂⁻

⇒ $Ka = \frac{[H^{+}][NO_{2} ^{-}] }{[HNO_{2}] }$

H₂S hydrogen sulfide = S²⁻(sulphide ion)

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according to this hydrocyanic acid is weak acid so the corresponding conjugate base i.e. cyanide ion is strongest conjugate base.

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