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A 5.500g mixture of sodium chloride, silicon dioxide, and ammonium chloride wasn’t heated by in order to sublime off the NH4Cl. After heating to remove the NH4Cl, the student reported the sample weighed 4.310g.  If the original mixture contained 22.0% ammonium chloride, was all the NH4Cl removed or driven off by heating. Document answer.

Question

A 5.500g mixture of sodium chloride, silicon dioxide, and ammonium chloride wasn’t heated by in order to sublime off the NH4Cl. After heating to remove the NH4Cl, the student reported the sample weighed 4.310g. 

 

If the original mixture contained 22.0% ammonium chloride, was all the NH4Cl removed or driven off by heating. Document answer. 

check_circleAnswer
Step 1

The amount of NH4Cl present in the original mixture = 5.500 g x (22/ 100) =1.21 g

Step 2

The amount of NH4Cl removed after heating = 5.500g &n...

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