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zubka84 [21]
3 years ago
9

Calculate the moles in 8083.8 mL of a gas at STP

Chemistry
1 answer:
atroni [7]3 years ago
4 0

Answer:

8083.8ml x 1 L/1000ml x 1mole/ 24L = 194.01 moles

Explanation:

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Determine the pH of a 0.048 M hypochlorous acid (HClO) solution. Hypochlorous acid is a weak acid (Ka = 4.0 ✕ 10−8 M).
storchak [24]

pH of 0.048 M HClO is 4.35.

<u>Explanation:</u>

HClO is a weak acid and it is dissociated as,

HClO ⇄ H⁺ + ClO⁻

We can write the equilibrium expression as,

Ka = $\frac{[H^{+}] [ClO^{-}]  }{[HClO]}

Ka = 4.0 × 10⁻⁸ M

4.0 × 10⁻⁸ M = $\frac{x \times x }{0.048}

Now we can find x by rewriting the equation as,

x² =  4.0 × 10⁻⁸ × 0.048

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Taking sqrt on both sides, we will get,

x = [H⁺] = 4.38 × 10⁻⁵

pH = -log₁₀[H⁺]

     = - log₁₀[ 4.38 × 10⁻⁵]

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3 years ago
How does the arrangement of particles in a gas differ from the arrangements in liquids and solids?
Paladinen [302]
The arrangement of particles in a gas is random. they have no orderly arrangement and are free to move around while the particles in solid are in an orderly and rigid arrangement and cannot move about. particles in liquid are also arranged orderly but are not rigid
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3 years ago
How much force is needed to accelerate a 66 kg skier at 2 m/sec2
alexgriva [62]

Answer:

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Explanation:

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3 years ago
Which of the following is the best hypothesis?
DerKrebs [107]

Answer:

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C.) is incorrect because this statement explains something that does not need to be tested. It is an example of a physical change when one tears a piece of paper.

D.) is incorrect because this is already a true statement. It is obvious that not all reactions absorb/release heat. While tests could be run to further prove this statement true, it is already considered accurate.

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2 years ago
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Answer:

In cellular respiration, cells use <u>oxygen</u> to release energy stored in <u>glucose</u>.

If my answer helped, please mark me as the brainliest!!

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