‘Mass of ethanol’ should be identified. Concept Introduction: 0. 358 pt of mouthwash is present and we can convert pt into mL by using conversion factor. It can be given as: 1 pt = 473.18 mL And we have provided with density, from it we can calculate the mass of solute in a tube by using density as follows; d = m v Given: Mouthwash is 21 .6 % ethanol by mass Volume of mouth wash = 0. 358 pt d = 0 .876 g cc

Question

In addition to the separation techniques used in this lab (magnetism, evaporation, and filtering), there are other commonly used separation techniques. Some of these techniques are:Distillation – this process is used to separate components that have significantly different boiling points. The solution is heated and the lower boiling point substance is vaporized first. The vapor can be collected and condensed and the component recovered as a pure liquid. If the temperature of the mixture is then raised, the next higher boiling component will come off and be collected. Eventually only non-volatile components will be left in the original solution.Centrifugation – a centrifuge will separate mixtures based on their mass. The mixture is placed in a centrifuge tube which is then spun at a high speed. Heavier components will settle at the bottom of the tube while lighter components will be at the top. This is the technique used to separate red blood cells from blood plasma.Sieving – this is…

Answer 1

Question

Chapter 2, Problem 2.136CQ

Interpretation Introduction

Interpretation:

‘Mass of ethanol’ should be identified.

Concept Introduction:

$0. 358 pt$ of mouthwash is present and we can convert $pt$ into $mL$ by using conversion factor.

It can be given as: $1 pt = 473.18 mL$

And we have provided with density, from it we can calculate the mass of solute in a tube by using density as follows;

$d = \frac{m}{v}$

Given:

Mouthwash is $21 .6 %$ ethanol by mass

Volume of mouth wash = $0. 358 pt$

$d = 0 .876 \frac{g}{cc}$

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Students have asked these similar questions

In addition to the separation techniques used in this lab (magnetism, evaporation, and filtering), there are other commonly used separation techniques. Some of these techniques are:Distillation – this process is used to separate components that have significantly different boiling points. The solution is heated and the lower boiling point substance is vaporized first. The vapor can be collected and condensed and the component recovered as a pure liquid. If the temperature of the mixture is then raised, the next higher boiling component will come off and be collected. Eventually only non-volatile components will be left in the original solution.Centrifugation – a centrifuge will separate mixtures based on their mass. The mixture is placed in a centrifuge tube which is then spun at a high speed. Heavier components will settle at the bottom of the tube while lighter components will be at the top. This is the technique used to separate red blood cells from blood plasma.Sieving – this is…

Briefly describe a eutectic system.

13.53 Draw all stereoisomers formed when each compound is treated with HBr in the presence of peroxides. a. b. C.