! ! ! ! ! ! ! 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
Premium Sodium chloride Solvent Water
! ! ! ! Determination of Gas Constant R through Mg and HCl Reaction ! ! ! ! ! !1 of !9 IB Chemistry SL (Jr) Candidate: Yunha Kim Objective ! Candidates will react Magnesium with Hydrochloric acid and collect Hydrogen. The grams of the produced Hydrogen will be calculated and compared to the theoretical yield of Hydrogen. ! Controlled Variables ! Mass of Magnesium Ribbon This will be kept constant as the objective is to determine the Gas Constant (R). If this
Premium Ideal gas law Pressure Chlorine
Dissolved Table 1. Results for the five compounds tested in four different solvents. Functional Group Experimental peak (cm-1) Literature peak (cm-1) O-H 3450 3200-3600 O-H 3350-2300 3400-2500 C-H 3100-2600 3200-2800 C=O 1669.6-1600 1710-1720 Table 2. Experimental IR peaks for salicylic acid compared to the literature value. Percent recovery of salicylic acid For the first part of the experiment‚ the compounds which dissolved in the solvent are soluble‚ while those which are slightly dissolved
Premium Solubility Ethanol Solvent
EXPERIMENT NO. 6 DETERMINATION OF THE MOLAR VOLUME OF A GAS AND THE UNIVERSAL GAS CONSTANT Salve‚ Ryan Angelo TAB3‚ Group 6‚ Mr. John Kevin Paulo Biadomang Tabor‚ Frances Hermilyn March 8‚ 2013 ------------------------------------------------- I. Abstract This experiment is working with the ideal gas law‚ which is the summation of Boyle’s Law‚ where pressure is inversely proportional to volume‚ Charles’ Law‚ where the volume is directly proportional to temperature and Avogadro’s Law‚ where
Premium Pressure Ideal gas law Gas
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
Premium Acid dissociation constant
general‚ solubility rules can be used to predict the outcome of double replacement reactions. I have come to this decision‚ because almost all of the data recorded from the lab‚ with the exception of number 13‚ agreed with the predictions made beforehand. 2. Out of the 15 combinations‚ the observations made for the combination of number 13 (the reaction of lead (II) nitrate and barium chloride)‚ did not agree with what was predicted‚ based on the solubility rules. The solubility rules that
Premium Solubility Solution Solvent
texts contain solubility rules and tables. Basic Solubility Rules: A. Nitrates: All nitrate salts are soluble. B. Alkali metals: The salts of lithium‚ sodium‚ potassium‚ rubidium‚ and cesium are generally very soluble. C. Ammonium salts: Almost all ammonium salts are soluble. D. Sulfates: The sulfates of most common elements are soluble‚ except those of calcium‚ strontium‚ barium‚ and lead (II) ions. © 2010 Hands On Labs‚ Inc. LabPaq CK-1 103 E. Hydroxides: Most of the hydroxides are insoluble
Premium Solubility Ion Chemistry
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
Premium Thermodynamics Entropy Energy
Calcium in the body 10-09-10 Calcium is a mineral that is very important to the body. It is found in many different foods. Milk‚ yogurt‚ and cheese are well known sources of calcium. It is said that milk does a body good and that is because of the calcium in milk. Calcium is available as a dietary supplement. Carbohydrates and citrates are the two main forms of calcium in dietary supplements. Calcium has a lot to do with maintaining bone mass. An article titled Calcium: focus on foods and beverages
Premium Osteoporosis Dietary mineral Calcium
Preparation of Calcium Carbonate Lab In this laboratory activity you will attempt to produce 1.00g of calcium carbonate from aqueous solutions of calcium chloride and sodium carbonate. These solutions will be prepared from 2.01 g of calcium chloride and 1.06 g of sodium carbonate . Materials: 3 beakers 100 mL graduated cylinder rubber policeman funnel filter paper Procedure: 1. Put on your safety goggles. 2. Obtain two clean beakers. Rinse the inside of the beakers with a small
Premium Water Sodium Filter paper