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Lera25 [3.4K]
3 years ago
7

A sample of thionylchloride, SOCl2, contains 0.206 mol of the compound. What is the mass of the sample, in grams?

Chemistry
2 answers:
Ilia_Sergeevich [38]3 years ago
3 0

Explanation:

Moles=mass/molar mass

moles × molar mass = mass

0.206 x 119= mass

Mass= 24. 51grams

Galina-37 [17]3 years ago
3 0

Answer:

24.51 g to the nearest hundredth

Explanation:

1 mole of SOCl2 =  32 + 16 + 2 *35.5 = 119 g

0.206 mol = 0.206 * 119

=  24.51 g.

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Answer:

Phenols do not exhibit the same pka values as other alcohols;

They are generally more acidic.

Using the knowledge that hydrogen acidity is directly related to the stability of the anion formed, explain why phenol is more acidic than cyclohexane.

Explanation:

According to Bromsted=Lowry acid-base theory,

an acid is a substance that can release H^{+} ions when dissolved in water.

So, acid is a proton donor.

If the conjugate base of an acid is more stable then, that acid is a strong acid.

In the case of phenol,

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The resonance in phenoxide ion is shown below:

Whereas in the case of cyclohexanol resonance is not possible.

So, cyclohexanol is a weak acid compared to phenol.

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Compute Reaction Rates for All Seven Trials
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The expression of half-life for first order reaction:

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t_{1/2}=\frac{1}{[A_o]k}

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So, the given reaction can be zero order or second order.

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235=\frac{1}{(0.184M}\times k}

k=2.31\times 10^{2}M^{-1}s^{-1}

From this we conclude that the reaction is a second order.

Therefore, the value and unit of the rate constant for this reaction is, 2.31\times 10^{2} and M^{-1}s^{-1} respectively.

8 0
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