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Chapter 27: Q6P (page 767)

Why is it less desirable to wash AgCl precipitate with aqueous NaNO3 than with HNO3 solution?

Short Answer

Expert verified

The AgCI precipitateHNO3 would be more desirable than withNaNO3

Step by step solution

01

Definition

It is an analytical technique that uses a precipitation reaction to separate ions from a solution. The chemical that is added to cause the precipitation is called the precipitant or precipitating agent

02

Characteristics of HNO3 and NANO3

doesn’t evaporate during drying.

evaporates during drying.

03

Washing of AgCl precipitate solution.

If we washed with AgCI precipitate with HNO3,would evaporate during drying this would leave a clean AgCI precipitate.

If we washed with AgCI precipitate with NaNO3,NaNO3,is non volatile and wouldn’t evaporate during drying this would leave a dirty AgCI precipitate.

Therefore, precipitate withHNO3 would more desirable than that NaNO3.

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Most popular questions from this chapter

(a) What is the difference between absorption and adsorption?

(b) How is an inclusion different from an occlusion?

A method to measure soluble organic carbon in seawater includes oxidation of the organic materials to CO2 with K2S2O8, followed by gravimetric determination of the CO2 trapped by a column 0f Ascarite. A water sample weighing 6.234 g produced 2.378 mg of CO2(FM 44.009). Calculate the ppm carbon in the seawater.

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Find the wt%of C and H in the sample.

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