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Title: Assuming soap to be a pure sodium stearate, give an equation Post by: FionaSupernova on Feb 15, 2015 a) that shows why its solutions are alkaline.
b) for its reaction with Mg+2 in hard water. c) for its reaction with hydrochloric acid. :) Title: Re: Assuming soap to be a pure sodium stearate, give an equation Post by: padre on Feb 15, 2015 Similar Question Assuming a soap to be pure sodium stearate, give balanced equation to illustrate the following:? a) Why its solutions are alkaline: b) Its reaction with Ca+2 in hard water: a) CH3-(CH2)16-COONa+HCl=CH3-(CH2)16-COOH + NaCl b) 2CH3-(CH2)16-COONa+CaCO3=(CH3-(CH2)1... +Na2CO3 - the second reaction explains why soap doesn't make as many "bubbles" in hard water hope this two reaction are enough for you. Title: Re: Assuming soap to be a pure sodium stearate, give an equation Post by: wizarddim on Feb 15, 2015 An aqueous solution of sodium stearate will react with Ca2+ ions in hard water to give an insoluble precipitate of calcium stearate:
2 C17H35COONa(aq) + Ca2+(aq) --> (C17H35COO)2Ca(s) + 2 Na+(aq) Title: Re: Assuming soap to be a pure sodium stearate, give an equation Post by: bio_man on Feb 15, 2015 Question was cut off, could you please write it down fully below, thanks.
Title: Re: Assuming soap to be a pure sodium stearate, give an equation Post by: FionaSupernova on Feb 16, 2015 Content hidden
Title: Re: Assuming soap to be a pure sodium stearate, give an equation Post by: bio_man on Feb 24, 2015 Hi FionaSupernova,
Could you give us a little update on what you did to tackle this problem? Title: Re: Assuming soap to be a pure sodium stearate, give an equation Post by: FionaSupernova on Feb 26, 2015 Hi FionaSupernova, Could you give us a little update on what you did to tackle this problem? we were made to prepare soap and compare it with syndets. those were the questions in the post lab actually. the prepared soap and syndets were subjected to solutions like fe-, mg-, and ca- as well as with tap water and we were made to observe precipitates. i just discussed the results as the theories stated how things should be... though my results were quite inconsistent with the theories. i may have done the experiment wrongly too. :) Title: Re: Assuming soap to be a pure sodium stearate, give an equation Post by: Mackenzie Rae on Mar 23, 2020 0
Title: Re: Assuming soap to be a pure sodium stearate, give an equation Post by: Bs2002 on Oct 1, 2020 Thanks
Title: Re: Assuming soap to be a pure sodium stearate, give an equation Post by: RedPandaPeki on Oct 7, 2020 thanks
Title: Re: Assuming soap to be a pure sodium stearate, give an equation Post by: Sam Faulkner on Oct 23, 2020 Thank you
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