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Leto [7]
3 years ago
11

The rate of dissolution is affected by all of the following except the A. agitation of solute within the solvent. B. surface are

a of the solute. C. temperature of the solute. D. amount of the solute dissolved.
Chemistry
1 answer:
laila [671]3 years ago
8 0

Answer:

B

Explanation:

cause surface area of solute is not necessary for solution

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8 0
3 years ago
Fill in the blanks below.
Elenna [48]

Answer:

Explanation:

6CO₂ + 6 H₂O ⇄ C₆H₁₂0₆ + 6O₂

This is the chemical equation given .

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2. In the equation, CO₂ is a___reactant_____.

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5 0
3 years ago
The convex lens of a magnifying glass is used to focus sunlight, as shown. Which of the lettered parts of the lens diagram repre
vesna_86 [32]

This is just a guess, but I do believe it is B

5 0
3 years ago
The Ka for acetic acid (HC2H3O2) is 1.80 x 10-5 . Determine the pH of a 0.0500mol/L acetic acid solution.
TiliK225 [7]

Answer:

pH = 3.02

Explanation:

Acetic Acid is a weak acid (HOAc) that ionizes only ~1.5% as follows:

HOAc ⇄ H⁺ + OAc⁻.

In pure water the hydronium ion concentration [H⁺] equals the acetate ion concentration [OAc⁻] and can be determined* using the formula [H⁺] = [OAc⁻] = SqrRt(Ka·[acid]) = SqrRt(1.8x10⁻⁵ x 0.0500)M = 9.5x10⁻⁴M.

By definition, pH = -log[H⁺] = -log(9.5x10⁻⁴) = 3.02

______________________________________________________

*This formula can be used to determine the [H⁺] & [Anion⁻] concentrations for any weak acid in pure water given its Ka-value and the molar concentration of acid in solution.

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3 years ago
Which of the following shows the correct sequence of the Cell Cycle?
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