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3 years ago

Why can't all mixtures be classified as solutions?

Chemistry

1 answer:

natulia [17]3 years ago

6 0

Answer is: Not all mixtures have solutes and solvents.

Solution is homogeneous mixture composed of two or more substances.

In aqueous solution, solvent is water and solute (for example salt) is a substance dissolved in water.

Homogeneous solution of salt and water can be separated with heating (evaporating the water).

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2 years ago

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Answer:

a. 113 min

Explanation:

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Using integrated rate law for first order kinetics as:

$[A_t]=[A_0]e^{-kt}$

Where,

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$[A_0]$ is the initial concentration

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Final concentration $[A_t]$ = 91 kPa

Time = ?

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$91=125e^{-2.8\times 10^{-3}\times t}$

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Answer:

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