changes that occur when they are mixed together. Data Tables and Observations: CHEMICALS REACTIONS NaHCO3 Bubbles are formed HCl & BTB Turns an orange color NH3 & BTB Turns a dark blue color HCl & blue dye Turns a green color Blue dye & NaOCl Turns a light blue color. 1 drop of HCl: teal color Kl & Pb (NO3)2 Turns a milky‚ yellow color NaOH & phenolphthalein Turns a pink color HCl & phenolphthalein Remains clear‚ no bubble formed NaOH & AgNO3 Turns a greenish/brownish color AgNO3
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the reaction/changes were recorded. The new mixture was viewed on a light and on a dark background to observe all changes. Data Table 1: Reactions Expected WELL # / QUESTION CHEMICALS REACTION A NaHCO3 and HCL-CO2 Bubbles form at bottom of well and rise to top of well then burst. B HCl and BTB Clear solution and blue solution turn yellow when mixed C NH3 and BTB Clear solution and blue solution
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chemical change Data Table 1: Reactions Expected | | Well #/ Question | Chemicals | Reaction | | | | A | NaHCO3 – CO2 | It creates bubbles‚ it keeps uncolored | B | HCl and BTB | It changes to a strong yellow liquid | C | NH3 and BTB | It changes to blue liquid | D | HCl and blue dye | It changes green. | E | Blue dye and NaOCI | it first is blue and after add the HCl creates several colors‚ which are yellow‚ blue and green | F | NaOCl and KI | First a soft yellow‚ and after add
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symptoms as it produces CO2 when dissolved in water. The goal of this lab is to calculate the amount of NaHCO3 is needed to produce enough CO2 gas to fill the room. Experimental One Alka-Seltzer tablet was weighed on the analytical balance. Then a piece was measured out to be between 0.21 and 0.28 grams. 500mL of distilled water was added to a 600mL beaker. 80mL of water was mixed with 20mL of 6M HCl in a 150mL beaker. A 1.5g piece of Alka-Seltzer was added to this mixture and all CO2 was allowed to
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There were some parts during the experiments that the group could not distinguish when the color change occurred so there was more solute going into the mix than there should have been. Also at one point there was the mistake in part B of using KHP and HCl together instead of the NaOH so that mistake skewed results just a little. Conclusion: For this experiment‚ it was essential to make sure the correct solutes were being used properly‚ as we found out‚ it would not produce a color change if the wrong
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dissolved in water the very strong acid does not exist any more since it has dissociated into its ions. H-Cl H1+ + Cl1- Dissociation of Hydrochloric acid Examples of Strong Acids: Strong Acid Hydrochloric Acid Sulfuric Acid Formula HCl Common Source H2SO4 Battery Acid Stomach Acid Weak acids are acids that produce only a few hydrogen ions‚ H1+’s. Only some of the molecules in solution dissociate (break apart) into hydrogen cations‚ H1+‚ at a time. When they do break
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Chemicals Provided in Lab Kit. Well # Chemicals Reaction A-1 NaHCO3 and HCl-C02 Remained clear‚ very bubbly‚ almost as if forming a gas‚ which it was. Carbon Dioxide. B-1 HCl and BTB The results of adding the blue indicator was a color change. It turned orange‚ indicating acidity. C-1 NH3 and BTB It remained blue‚ indicating a base. D-1 HCl and blue dye The mixture turned green. E-1 Blue dye and NaOCl Blue at first‚ then when HCL was added to the mix‚ it turned green. F-1 Kl and Pb(NO3)2 Very
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Data Table 1: |Chemicals |Well # |Reaction on White Paper |Reaction on Dark Paper | |NaHCO3 + HCl |A6 |Remains clear. |Remains clear. | |HCl + Blue Dye |B6 |Orange color. |Cannot distinguish color change. | |NH3 + Blue Dye
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KOH heat effervescence + alcoholic HCl + FeCl3 – red colored solution Hydrolysis of acid derivatives H2O + Acetic anhydride 2-immiscible layer formed‚ blue litmus paper turned red‚ test tube becomes warm as the reaction took longer time Pinch of benzamide + NaOH Red litmus paper turned blue III. DISCUSSION INTRODUCTION Some tests was conducted with carboxylic acids and its derivatives 1. Solubility of Carboxylic acids in 5% NaHCO3 Carboxylic acids can be easily dissolved
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Separating Acids and Neutral Compounds by Solvent Extraction Introduction The purpose of this experiment was to use solvent extraction techniques in order to separate a mixture consisting of a carboxylic acid (p-toulic acid)‚ a phenol (p-tert-butylphenol)‚ and a neutral compound (acetanilide). Extraction is the process of selectively dissolving one or more of the compounds of a mixture into an appropriate solvent‚ the solution that contains these dissolved compounds is called an extract (Manion
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