General Conclusion: These experiments helped us understand the importance of molecular polarity. This knowledge can now be used for the future to predict‚ for example‚ if two substances will mix or not. We can now do this by knowing that polar substances only mix with other polar substances‚ while non-polar substances only mix with other non-polar substances. This concept can be used to predict if a substance will be soluble in a specific solvent. The concepts of solubility and conductivity of a
Premium Chemical polarity Solubility Water
(NH4 ‚ Mg(OH2)62+‚Zn(OH2)62+ ; 7 neutral ions (Ag+‚ Na+‚ K+‚ Ca2+‚) ; 13 OH- ; Test for Cl-: -add 1M HONO2 till solution is acidic test -Add 1 drop of 0.02M AgNO3 to small amount of sample solution -Stir and observe - if solution turns cloudy = Cl- Test for SO42-: ( same as Cl- test but with 0.025M Ba(NO3)2 instead of 0.02M AgNO3) -white ppt = SO42- Test for HOSO3-: -pH test then “Test for SO42-“ - If “Test for SO42” is positive with pH ~2.0 = HOSO3- - If “Test for SO42” is positive
Premium Solubility Carbon dioxide PH indicator
colored powder. 2. Procedure for Analysis for percent Halide in a synthesized cobalt compound. Prepare AgNO3 first: Weigh out 1.7-1.8 grams of AgNO3 and dissolve it in 50 mL deionized water. Mix in 10 drops of concentrated HNO3. Crucibles were already at a constant weight. Weighed out.24-.25 gram samples. Added 125-150 mL of deionized water and 10 drops of HNO3. Add 25 mL of AgNO3 solution to each sample. Boil gently. Collect AgX in gooch crucible. Used suction flask to dry then they were
Premium Water Mole Kilogram
useful solids (Bauer 45). It was the lab group’s goal to design procedures for creating these useful solids out of the concentrated byproduct solutions. The concentrated byproduct solutions provided by the company were: 0.1 M of NaOH‚ H2SO4‚ BaCl‚ HCl‚ AgNO3‚ and Zn(NO3)2. With the byproduct solutions given‚ four different useful solids could be created. These solids are: Na2SO4‚ BaSO4‚ AgCl‚ and Zn(OH)2. Potential commercial uses for these particular solids are discussed in the “discussion” section of
Premium Chemical reaction Solubility
Name: Jocelyne Munguia|Date: 6/12/13| Exp 1: Observations of Chemical Changes|Lab Section: 75426| Data Tables: Part 1: |Chemicals|Well No.|Observations of the Reaction| A.|NaHCO3 + HCl|A2|Tiny bubbles formed around the edges. Under white paper it looked transparent‚ but under black paper there was some white in the middle. | B.|HCl + BTB|A3|The mixture turned yellow instantly. Under white paper the mixture was more of mustard yellow and under black paper it was less of a bright yellow. | C
Premium Green Color Yellow
GENERAL CHEMISTRY Laboratory Guide This module provides a laboratory guidelines‚ safety declaration form‚ Lab Report guidelines and Laboratory manual for subject of General Chemistry (CLD 10004). Mohd Zulkhairi Abdul Rahim Laboratory Information Before each lab session‚ you should prepare by reading the lab manual and the textbook required reading. We expect you to have a good understanding of the purpose‚ details of the procedure‚ the use of all chemicals and any significant hazards
Free PH
Cobalt Complexes Lab 4 Cobalt and its slew of complex children Abstract: Through a series of substitution reactions‚ different cobalt ammine complexes were created. These complexes were analyzed via‚ precipitation and gravimetric measures to determine that the substitution reactions that occurred. Introduction: Coordination chemistry is an important part of inorganic chemistry that involves the association and dissociation of ligands to a metal. The size‚ shape
Premium Ammonia Hydrochloric acid Chlorine
water. Pour 5 ml of this solution into each of four test tubes‚ using test tube one as a control‚ to compare to the others. Follow the below procedure. TT #2: Add 1 ml of .1 M FeCl3 solution. TT #3: Add 1 ml of .1 M KSCN solution. TT #4: Add .1 M AgNO3 solution by drops until a change occurs Part 3: Prepare a dilute ammonia solution (NH3 + H2O NH4+ + OH-) by adding 4 drops of ammonia to 100 ml of water. Add 3 drops of phenolphthalein (detects OH-). Pour 5 ml of the solution into each of three
Premium Ammonia Chemical reaction Chlorine
Heterogeneous| H.|NaOH + phenolphthalein||Turns a dark pink/purple and expands. Homogeneous| I.|HCl + phenolphthalein||No color change but expands away from point of contact. Homogeneous| J.|NaOH + AgNO3||Turns a dark brown and separates into small strands of brown liquid within the clear liquid. Heterogeneous| K.|AgNO3 + NH3||Slight bubbling‚ clear liquid. Heterogeneous| |after exposure to bright light||Bubbling intensifies and color remains clear. | L.|NH3 and CuSO4||Pale blue color. Extremely small and
Premium Blue Chemistry Green
Purpose: To observe the reactions of specific aqueous solutions with specific aqueous reagents. Introduction: A solution is as a homogeneous mixture containing two or more substances. Reagents are added to solutions to create a chemical reaction or added to see if anything occurs. Reagents can be added to solutions to see if there is a presence of other substances. For example‚ iodine added to a lead solution. Iodine would be the reagent and would cause a chemical reaction confirming the presence
Premium Chemistry Magnesium Nucleophile