to the mass of one product. Purpose: The experiment will be designed to find out the stoichiometric mole ratio of Barium Chloride and Silver Nitrate yielding a precipitate of Silver Chloride in a Barium Nitrate solution. (BaCl2 + 2AgNO3 -> Ba(NO3)2 + 2AgCl) Research Question: How will the amount of Barium Chloride and Silver Nitrate affect how much Silver Chloride is produced? Hypothesis: If there is one mole of BaCl2 in the reaction‚ then two moles of AgCl will be produced. Variables:
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! " # $ # % " # & ’ $((() * * %+‚+% & & & $((( CHRA MANUAL 2nd EDITION TABLE OF CONTENT Page Chapter 1 : Introduction Chapter 2 : Concepts Chapter 3 : Steps in Assessment Chapter 4 : Deciding the Assessor Chapter 5 :Gather Information Chapter 6 : Divide into Work Units Chapter 7 : Determine Degree of Hazard Chapter 8 : Evaluate Exposure Chapter 9 : Control Measures Chapter 10 : Concluding The Assessment Chapter 11 : Action to be taken Chapter 12 : Record Keeping Chapter 13 : Review
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of the chloride ion on its rate of diffusion in agar means it will diffuse faster because it is more concentrated. We graphed the diffusion of chloride ions rather than sodium ions because while the sodium ions do diffuse in to the agar the chloride ions from the NaCl will combine with silver ions‚ from AgNO3 and create a white precipitate. The white precipitate allows us to measure the the white band through the agar at different points and determine the rate of diffusion of the chloride ions.
Free Ion Sodium chloride Diffusion
solubility guidelines lead (II) chloride (PbCl2) is a possible precipitate. This is because even though most chlorides are soluble‚ lead chloride is considered insoluble (p.2‚ Lesson 17). Step 2: PbCl2 ↔ Pb2+ + 2Cl- Q = [Pb2+] [Cl-] 2 Step 3: Ksp = 1.2 x 10-5 (from table 17.1‚ p.5) Step 4: V2 = 20.0 mL (volume of Pb (NO3)2) + 45.0 mL (volume of CaCl2) = 65.0 mL C2 = C1 V1 V2 Looking at lead nitrate solution before being mixed with the calcium chloride solution. The dissociation
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CHEMISTRY 125 LABORATORY Name: Balagao‚ Sherey Mae U. Date Performed: September 8‚ 2014 Lab Schedule: 1:00-4:00 MW Date Submitted: September 19‚ 2014 Group No.: 4 Rating: Exercise No. 8 CARBOXYLIC ACIDS AND ACID DERIVATIVES I. OBJECTIVES: • To investigate the physical and chemical properties of Carboxylic acid and its derivatives • To understand the reactions of carboxylic compounds and derivatives. II. EXPERIMENTAL
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Accepting ones past is always a hard thing to do‚ but by facing ones fears and learning to acknowledge and understand ones past‚ it becomes easier to move forward. Written in third person omniscient point of view‚ Annie Proulx’s novel‚ The Shipping News‚ exerts a dark yet comical tone. Proulx’s style of writing evokes a strong sense of setting and through setting the theme of the novel is developed. Ironic situations and comical details about the setting allow Proulx to emphasize her theme of how
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2-Hexanone Hexanoic Anhydride Hexonic Acid Hexanoamide Hexanal Methyl Hexanode Hexanal Chloride Hex-3-en-2-one Spartan Vibrational frequencies: Compound Frequencies (in ) 2-Hexanone 1934 Hexanoic Anhydride 1946 Hexonic Acid 1964 Hexanoamide 1895 Hexanal 1918 Methyl Hexanode 1940 Hexanal Chloride 1968 Hex-3-en-2-one 1916 Frequencies from the IR spectrophotometer: Compound Frequencies (in ) 2-Hexanone 1716.2 Hexanoic
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27) Na2O 28) CaF2 29) BP 30) Al2O3 1) magnesium sulfide 2) potassium bromide 3) barium nitride 4) aluminum oxide 5) sodium iodide 6) strontium fluoride 7) lithium sulfide 8) radium chloride 9) calcium oxide 10) aluminum phosphide 11) potassium sulfide 12) lithium bromide 13) strontium phosphide 14) barium chloride 15) sodium bromide 16) magnesium fluoride 17) sodium oxide 18) strontium sulfide 19) boron nitride 20) aluminum nitride 21) cesium oxide 22) rubidium iodide 23) magnesium oxide 24)
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During this experiment‚ when the pipette was measuring just the extracellular solution‚ this was deemed the baseline. When we punctured each of the DEM‚ DEL1‚ and DEL2 crayfish muscles‚ we observed a large drop in voltage (refer to Figure 1)‚ therefore indicating that inside the muscle was more negative in relation to the outside solution. The time when the pipette was intramuscular‚ the recording showed a steady reading of the intramuscular voltage potential (Figure 1). When the pipette was removed
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alcohols and phenols (in ’dry’ conditions*) The first 3 tests (i) - (iii) given on the right are quite general for most alcohols. | (i) Mix it with a few drops of ethanoyl chloride‚ test fumes with litmus and silver nitrate (* note ethanoyl chloride reacts with water‚ phenols and amines too!).(ii) Mix it with a little phosphorus(V) chloride and test as above.(iii) Warm with a little ethanoic acid and a few drops of conc. sulphuric acid. Pour into water. | (i) Litmus turns red and a white precipitate with
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