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3 years ago

12

How can you express the rate of a chemical reaction

1 answer:

Scorpion4ik [409]3 years ago

7 0

Reaction rate, the speed at which a chemical reaction proceeds. It is often expressed in terms of either the concentration (amount per unit volume) of a product that is formed in a unit of time or the concentration of a reactant that is consumed in a unit of time.

If that helped

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The first order reaction A → B, has k = 2.10. If the initial concentration of reactant A is 1.500 M, how long will it take [A] =

Semenov [28]

Answer:

$ln( \binom{at}{ao}{} ) = - kt$

Explanation:

$ln( \binom{0.6}{1.5} ) = - 2.1t$

$ln(0.4) = - 2.1t$

T = 0.436.

I used the formula for first order reaction.

I hope you get this.

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3 years ago

Can anybody do this?

lukranit [14]

Answer:

0.17907

Explanation:

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2 years ago

Which of the following solutions would have the lowest freezing point?

Paul [167]

B. 3.0 mol·L⁻¹ NaCl

Explanation:

Freezing point is a colligative property: it depends only on the number of particles in solution.

The for freezing point depression ΔT_f is

ΔT_f = iK_fb

where

i = the number of moles of particles available from one mole of solute

K_f = the molal freezing point depression constant

b = the molal concentration of the solute

All your solutions are aqueous NaCl. They differ only in their concentrations.

Thus, the most concentrated solution will have the greatest freezing point depression and the lowest freezing point.

Read more on Brainly.com - brainly.com/question/11516173#readmore

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2 years ago

What are two statements about a true system

zimovet [89]

Answer:

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2 years ago

Compare the compressibility of gases and liquids. Support your answer by describing the arrangement of particles in gases and li

Leokris [45]

Answer:

Gases are more compressible

Explanation:

The particles of gases have weak forces of attraction making them move in constant random motion making them easier to compress

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2 years ago