cations using sodium hydroxide (NaOH) aqueous Aims & Objectives Different characteristic cations will form different colors when they are burned or added base. In these two experiments‚ scientist took some sample of barium hydroxide (Ba (OH) 2·H2O)‚ ferric chloride (FeCl3·6H2O)‚ copper chloride (CuCl2· 2H2O)‚ calcium chloride anhydrous (CaCl2)‚ potassium carbonate crystal (K2CO3· 2H2O)‚ strontium chloride hexahydrate (SrCl2· 6H2O)‚ lead nitrate (Pb (NO3) 2)‚ sodium chloride (NaCl) and magnesium
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five drops of sodium sulfate in column 2A‚ 2B‚ and 2C. Place five drops of sodium hydroxide in column 3A‚ 3B‚ and 3C. Place five drops of sodium chloride in column 4A‚ 4B‚ and 4C. Record the color of a precipitate that has formed in the data table and “NR” if no precipitate has formed showing no sign of a reaction.Add a little water to each well and turn the well plate over on a paper towel. Throw the towel away and clean the plate. 1. H2CO3. 2. CaCl2 (aq)‚ H2CO3 (s). 3. Sodium Carbonate aqueous
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of the salt applied to the roadways eventually ends up in the ground water. It is estimated that 30% to 50% of the salt used travels into the ground water. Salt effect two areas of ground water‚ chloride concentration and sodium concentration. Chlorides may be present in the form of sodium chloride crystals or as a ion in a solution. Normal
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Synthesis of DEET Abstract: For this experiment m-toluic acid was reacted with thionyl chloride resulting in a nucleophilic acyl substitution which could then be used to create DEET with excess diethyl amine (Figure 1). This was done by adding diethyl amine drop wise using a seperatory funnel which resulted in a gas formation which was controlled with a condenser attached to a gas vacuum. The resulting mixture was then washed to remove excess acids and bases and rotovapped. DEET was synthesized
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100 mL beaker‚ heated it up to separate the sodium chloride and benzoic acid from the insoluble sand‚ then poured out the benzoic acid and sodium chloride into a separate cup and allowed I to chill in an ice bath for approximately five minutes. I dried up the sand and calculated the net weight for that. I poured the benzoic acid and sodium chloride mixture into a filtered funnel that caught the majority of the benzoic acid and allowed the sodium chloride to drain through to the cup. I allowed the
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pipets (2) | |conductivity tester |CaCl2 (calcium chloride) | |ethanol |KI (potassium iodide) | |iron ring |NaCl (sodium chloride) | |ring stand |C13H18O2 (ibuprofen)
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(c) Aluminum nitride AlN (d) Beryllium chloride BeCl2 (e) Potassium iodide KI (f) Aluminum oxide Al2O3 23. Write the correct formula for the following binary molecular compounds. (a) Carbon monoxide CO (b) Boron tribromide BBr3 (c) Sulfur hexafluoride SF6 (d) Carbon dioxide CO2 (e) Carbon tetrabromide CBr4 (f) Nitrogen dioxide NO2 24. Write the correct formulas for the following compounds that contain polyatomic ions. (a) Sodium hydroxide NaOH (b) Potassium nitrate KNO3
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Ingredients Water(aqua)‚ sodium Laureth Sulfate‚ CocamidopropylBetaine‚ Sodium Chloride‚ Dimethiconol‚ Fragrance(Parfum)‚ Carbomer‚ Guar Hydroxypropyltrimonium Chloride‚ Tetrasodium EDTA‚ Amodimethicone‚ DMDM Hydantoin‚ TEA-Dodecylbenzenesulfonate‚ Citric Acid‚ C11-15 Pareth-7‚ Laureth-9‚ Trideceth-12‚ PPG-9‚ Tocopheryl Acetate (vitamin E acetate)‚ Propylene Glycol‚ Panthenol‚ Methyl-chloroisothiazolinone‚ Methylisothiazolinone‚ Mica (Cl 77019)‚ Titanium Dioxide (Cl 77891) Sodium Laureth Sulfate
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Title: Osmosis in quails’ egg Aim: To observe the effect of different concentrations of sodium chloride on a de-shelled quail’s egg To explain the effects in terms of osmosis Research Questions: Does the different concentrations of sodium chloride on a de-shelled quail’s egg effect the final mass of quail’s eggs that is measured by using electronic weighing balance? Introduction: “If a cell is to perform its functions‚ it must maintain a steady state in the midst of an ever-changing
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Gracen Seiler April 7th‚ 2015 Section- 109 Investigating Stoichiometry with Sodium Salts of Carbonic Acid Introduction- This experiment is intended to help find a better understanding of chemical stoichiometry through titrations of NaHCO3 and NA2CO3 with HCl. A chemical reaction is a process that involves rearrangement of the molecular or ionic structure of a substance‚ as opposed to a change in physical form in a nuclear reaction. Titration is when a measured amount of
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