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3 years ago

Which compound lauric acid or sucrose is more soluble in water?

Chemistry

2 answers:

Greeley [361]3 years ago

4 0

<span>Sucrose is more soluble in water. The reason can be attributed to hydrogen bonding between water molecules and sucrose molecules. </span>

Alchen [17]3 years ago

3 0

Answer:

Sucrose.

Explanation:

Hello,

On the attached pictures you will find the structural formulas for both lauric acid and sucrose respectively. In this manner, since the sucrose has more OH bonds promoting the formation of hydrogen bond-like intermolecular forces with water, it will be more soluble in water than lauric acid, since it just has a remote carboxyle functional group which is not enough to provide solubility in water.

Best regards.

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For a certain reaction A → products a plot of ln[A] vs. time produces a straight line with a slope of −3.0×10−2 s−1. Which of th

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Answer:

Statements I and II are true.

Explanation:

Let us consider the reaction A → products.

Which of the following statements is or are true?

I. The reaction follows first-order kinetics. TRUE

The expression for a first-order reaction is:

ln[A] = ln[A]₀ - k.t [1]

where,

[A] is the concentration of the reactant A at certain time t

[A]₀ is the initial concentration of A

k is the rate constant

t is the time

If the plot of ln[A] vs. t A is a straight line, it means that the reaction follows a first-order kinetics.

II. The rate constant for the reaction is 3.0×10⁻² s⁻¹. TRUE.

In [1], ln[A]₀ is the intercept and -k the slope of the linear equation. Thus,

-k = −3.0×10⁻² s⁻¹

k = 3.0×10⁻² s⁻¹

III. The initial concentration of [A] was 1.0 M. FALSE.

Since we do not have information about the intercept in the plot of ln[A] vs. t, we do not have enough information to calculate the initial concentration of A.

Statements I and II are true.

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Explanation:

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