Chem Lab

Lab Acids and Bases: Determination of pH In this investigation we estimated the pH of divers(a) solutions using indicators and a pH meter. We utilise five indicators methyl red indicator, Litmus indicator, Bromthymol indicator, Phenophtalein indicator and the cabbage extract indicator, and we utilise viii solutions to try with each indicator. The eight solutions used where HCl, ethanoic social disease (HC2H3O2), ammonia (NH3), NaOH, tap urine, baking soda, sprite and vinegar. We began boiling g eachant cabbage as the color extracts into the piss leaving it identical an indicator, and then we separated eight running tubes and added tap water to each one. After we added Methyl red indicator to the eight test tubes and recorded its color with tap water, to each test tube except one we added the different solutions and recorded the changes in color. We did the same steps for the five indicators and recorded the data in a table.

Solutions Methyl Red index Litmus power Bromthymol Indicator Phenophtalein Indicator Cabbage Extract Indicator HClDark sound, the pink particles dont get to the bottomLight pink, well-nigh grubby particles in the formYellow, scarcely top fractional(prenominal)(prenominal) of the test tubeNo reactionLight wiretap, only when top half of the test tube Ethanoic AcidDark pink, wholly the mixture changes to pinkLight pink any last(predicate) mixture yellowNo ReactionLight pink AmmoniaNo ReactionNo ReactionDark blue on the top halfPink in the top halfNo Reaction NaOHYellow, no color changeNo ReactionDark blue on the bottom halfPink with purple mixtureGreen Tap WaterYellow, with yellow only in the top halfBlu e, it concentrates in the bottom steer half ! fountain/blueNo Reaction vapourific gray/blue Baking SodaNo ReactionAll the mixture glum to a gossamer BlueNo ReactionNo ReactionGreen, very light color pansyDark pink, RedLight pink, blue concentration on the bottomYellow, MixtureNo ReactionNo Reaction vinegarPink, Dark pink all of the mixtureLight pink, transparent color...If you want to get a full essay, inn it on our website: OrderEssay.net

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