Alvaro Puccini Maria Quin Solubility Lab Purpose: The main purpose of doing this lab is to learn how to interpret solubility graphs and how the temperature does affects the solubility of different substances. There are other objectives of the lab which are learning what are concentrated‚ diluted‚ supersaturated‚ and saturated substances and how can they be identified. The hypothesis of this lab would be that when temperature increases‚ the amount of salt and copper sulfate that can be added
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Date Performed: September 9 ‚2011 SPECTROPHOTOMETRIC DETERMINATION OF THE ACID DISSOCIATION CONSTANT OF METHYL RED M.C. Caligagan ‚M.N.Q. Tolentino and M.Q. Clores Institute of Chemistry‚ College of Science University of the Philippines‚ Diliman‚ Quezon City‚ Philippines Received :September 21‚2011 ABSTRACT This experiment aims to determine the acid dissociation constant value of Methyl Red by means of spectrophotometry. Ten samples were spectrophotometrically analyzed under a UV-Vis
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therefore soluble. Thus we can conclude that silver chloride is the insoluble precipitate. We can represent the formation of this precipitate by a net ionic equation: Ag+ +NO3 ̄ +Na++Cl ̄→AgCl+NO3 ̄+Na+ Net: Ag+ (aq)+Cl ̄ (aq)→AgCl(s) Ions present in the solution but not involved in forming the precipitate are called spectator ions; in our example these would be Na+ and NO3-. Spectator ions are not recorded in net ionic equations. To help identify (or predict) which compounds are soluble or insoluble
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Toddlers aged 1 to 3 need about 19 grams a day. Kids 4 to 8 need 25 grams a day. Between 9 and 13‚ girls and boys need 26 grams and 31 grams of fiber a day. Children need to take their fiber from various sources to make sure they have both soluble and insoluble fiber. Soluble fiber is commonly found in
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! ! ! ! ! ! ! Determining the solubility of Sodium hydroxide ! ! ! ! ! ! ! ! ! ! ! ! Yunha Kim! Gyeonggi Suwon International School ! IB DP Chemistry SL! Research Question! How is the solubility of sodium hydroxide (NaOH) in water affected by temperature? ! ! Introduction ! Sodium hydroxide is categorised as metal halide salt‚ composed of sodium and chlorine.! The ions present in the solid crystals of potassium chloride dissolve and gain mobility in water
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FACTORS AFFECTING SOLUBILITY There are three main factors that control solubility of a solute. (1) Temperature (2) Nature of solute or solvent (3) Pressure EFFECT OF TEMPERATURE Generally in many cases solubility increases with the rise in temperature and decreases with the fall of temperature but it is not necessary in all cases. However we must follow two behaviours: In endothermic process‚ solubility increases with the increase in temperature and vice versa. For
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NOTES - SALT ANALYSIS S.No. | EXPERIMENT | OBSERVATION | INFERENCE | 1(a) | Noted the colour of the salt | BluePale greenGreenPale pinkColourless | May be Cu2+May be Fe2+May be Ni2+‚ Cu2+May be Mn2+Absence of Cu2+‚ Fe2+‚ Ni2+‚ Cu2+‚ Mn2+ | (b) | Noted the physical state of the salt | (i)Amorphous(ii)crystalline | May be CO32-May be Cl-‚ Br-‚ SO42-‚ NO3- | 2 | Action of heat:The given salt is heated in a dry test tube. | (i)Reddish brown vapours(ii)Crackling sound(iii)Yellow when salt and white
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TITLE: Solubility and Thermodynamics PURPOSE: The purpose of the lab was to determine the thermodynamics variables of ∆H‚ ∆S‚ and ∆G for the dissolution reaction of potassium nitrate in water. The solubility of potassium nitrate in mol/L was measured over a range of various temperatures by finding out at what temperature crystallization began for solutions of different molarities. Then‚ the equilibrium constant was calculated and a graphical relationship between the natural logarithm of the
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1/03 1 Solubility data for four different salts in water at 60oC are shown in the table below. Which salt is most soluble at 60oC? (1) A (2) B (3) C (4) D Answer--> Choice D =0.5g/g H2O 2 Base your answers on the information below. When cola‚ a type of soda pop‚ is manufactured‚ CO2(g) is dissolved in it. 1. A capped bottle of cola contains CO2(g) under high pressure. When the cap is removed‚ how does pressure affect the solubility of the dissolved
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Experiment 1: Solubility of Organic Compounds (Answers to Questions) Q1. State what types of inetmolecular forces are present in solutions formed due to intermolecular attractions between the solute and the solvent. A1. For Water-Soluble Compounds: Acetone – Water: Hydrogen bonding and van der Waals forces Acetone – Diethyl Ether: Dipole – (induced) dipole and van der Waals forces Sucrose – Water: Hydrogen bonding and van der Waals forces Ethyl alcohol – Water: Hydrogen bonding
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