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mass of the sample should be
reported as 33.619 g
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The mass of a sample is measured by difference: first the mass of a beaker is...
Table Salt from Baking Soda Name: Date: Partner: DATA: Mass of beaker 95.85. Mass of beaker...
Table Salt from Baking Soda Name: Date: Partner: DATA: Mass of beaker 95.85. Mass of beaker and sample (NaHCO3) 17.45. Mass of sample (NaHCO3) Mass of beaker and residue (NaCl) 1" Heating... :26 99, Mass of beaker and residue (NaCl) 2 Heating.. 26.85, Mass of beaker and residue (NaCl) 3* Heating... 26.959 Mass of beaker and residue (NaCl) best g Mass of residue (NaCl) 9 Volume of conc. HCI added ml CALCULATIONS: g/mol Molar mass of NaHCO3 Number of moles...
Each beaker in a series contains an identical sample of an acetic acid/sodium acetate buffer. The...
Each beaker in a series contains an identical sample of an acetic acid/sodium acetate buffer. The pH meter registers a value of 3.55. To each beaker the substance listed is added, and the pH again is measured. Assume this is done such that the total volume of the buffer does not change. In which beaker(s) will the pH remain at 3.55? a. Beaker 1: 0.5 g NaCl is added b. Beaker 2: 0.5 g KOH is added c. Beaker 3:...
Experiment 9 Data, Results and Discussion Name Beaker Sample 1 1. a. 4.412 g Mass of...
Experiment 9 Data, Results and Discussion Name Beaker Sample 1 1. a. 4.412 g Mass of SrCl2-6H20 and container Mass of container - 2.901 g Mass of SrCl2-6H20 added to Beaker I 1.511 grams Moles of SrCl2-6H20 added to Beaker I 1.511g/266.64 g/mole = 0.00567 moles Theoretical moles of Sr3(PO4)2 0.00567 mole Srdlz6H20 x 1mole Srs(PO4)2/3 mole Srl determined from moles of SrCl2-6H20 0.00189 2. a. Mass of Na3PO4-12H20 with container 3.586 g - 2.583 g Mass of container 1.003...
Number of Unknown Sample Mass of Beaker #1 and Sample a-b=2,129 52.4779 - 50.348g 2.1299 -B0.35g...
Number of Unknown Sample Mass of Beaker #1 and Sample a-b=2,129 52.4779 - 50.348g 2.1299 -B0.35g 14.7009 DATA SUMMARY 4 52.4719 Mass of Beaker #1 50.341.4 Mass of Sample d Mass of Beaker 2 + NaCl (dried) 14. 1994 e Mass of Beaker #2 \r. 4019 f Mass of NaCl Recovered 2.4519 Mass of Filter Paper and Sio, (dried) 9 h Mass of Filter Paper 0.8129 Mass of Sio, Recovered J f + i=1.998g Total Mass of NaCl + SiO,...
vula, Results and Discussion Beaker Sample 1 Name Mass of SrCl-6H,0 and container Mass of container Mass of SrCl, 6...
vula, Results and Discussion Beaker Sample 1 Name Mass of SrCl-6H,0 and container Mass of container Mass of SrCl, 6H 0 added to Beaker I 112.4444 110.2369 2. 2075 0.0048 Moles of SrC1,-6H 0 added to Beaker I Theoretical moles of Sr,(PO)2 determined from moles of SrC1,-6H,0 2. a. Mass of Na,PO, 12H,0 with container Mass of container b. 3.4H 116.2369 1. 2041 0.0032 d. Mass of Na, P0, 12H,0 added to Beaker I Moles of Na PO, 12H,0 added...
3. (2 marks) Fill in the data table: mass of beaker (9) mass of beaker plus...
3. (2 marks) Fill in the data table: mass of beaker (9) mass of beaker plus copper oxide () mass of copper oxide (g) 57.8699 57.589 0.al 54.5139 0.1444 mass of beaker plus copper (8) mass of copper obtained (g) mass of oxygen in the copper oxide () 0.0019 Interpretation of Results and Conclusions 4. (3 marks) Calculate the observed percentage composition of your copper oxide. Show your calculations. From this result, deduce which pure oxide you were given. Elements...
Mass of gelatin capsule Mass of capsule and alloy Mass of empty beaker Mass of beaker...
Mass of gelatin capsule Mass of capsule and alloy Mass of empty beaker Mass of beaker and displaced water Barometric pressure Temperature of water 0.112 g 0.271 g 141.209 g 307.712 g 745.9 mm Hg 21 C Calculations Mass of alloy Mass of displaced water Volume of displaced water CHN 003 20 I. Read the f (see Appendix H) Volume of hydrogen gas (Hydrogen Temperature of hydrogen gas shuiji assume to be equal to temperature of the water) Vapor pressure...
Questions 1-4 Before reaction: a. unknown number b. weight of beaker, test tube weight of beaker,...
Questions 1-4
Before reaction: a. unknown number b. weight of beaker, test tube weight of beaker, test tube, KCIO3 KCI d. weight of beaker, test tube, KCIO3 KCI. Mno2 e. weight of KCIO3 KCl sample (c-b) After reaction: f. volume of oxygen collected at laboratory temperature and pressure -22.3% 246.3 n (determined by the amount of water expelled from the flask g. temperature of the oxygen h. water vapor pressure at the measured temperature (table: Handbook of Chemistry and Physics)...
Data Mass of Beaker 1 Mass of Beaker 1 +CaCl2 Mass of Beaker 2 Mass of...
Data Mass of Beaker 1 Mass of Beaker 1 +CaCl2 Mass of Beaker 2 Mass of Beaker 2 + KIO Mass of Watch Glass + Filter Paper 113.3949 114.4089 130.7249 13 2.0769 58.340g 59. Sisg _59.3213 131.6489 131.6349 Mass of Watch Glass + Filter Paper + Ca(IO3)2(after 1" Heating) Mass of Watch Glass + Filter Paper + Ca(IOsh(after 2nd Heating) Mass of Beaker 2 + Residue (after 1" Heating) Mass of Beaker 2 + Residue (after 2nd Heating) Calculations (Show...
A. Freezing Point of Cyclohexane (Solvent 1. Mass of beaker, test tube (g) 2. Freezing point,...
A. Freezing Point of Cyclohexane (Solvent 1. Mass of beaker, test tube (g) 2. Freezing point, from cooling curve 3. Instructor's approval of graph 33010 B. Freezing Point of Cyclohexane plus Unknown Solute Trial 1 Parts B.1, B.3) Unknown solute no. Trial 2 (Part B.4 Trial 3 Part B.5 1. Mass of beaker, test tube, cyclohexane (g) 2. Mass of cyclohexane (g) 3. Tared mass of added solute (g) 4. Freezing point, from cooling curve CC) 5. Instructor's approval of...
Table Salt from Baking Soda Name: Date: Partner: DATA: Mass of beaker 95.85. Mass of beaker and sample (NaHCO3) 17.45. Mass of sample (NaHCO3) Mass of beaker and residue (NaCl) 1" Heating... :26 99, Mass of beaker and residue (NaCl) 2 Heating.. 26.85, Mass of beaker and residue (NaCl) 3* Heating... 26.959 Mass of beaker and residue (NaCl) best g Mass of residue (NaCl) 9 Volume of conc. HCI added ml CALCULATIONS: g/mol Molar mass of NaHCO3 Number of moles...
Experiment 9 Data, Results and Discussion Name Beaker Sample 1 1. a. 4.412 g Mass of SrCl2-6H20 and container Mass of container - 2.901 g Mass of SrCl2-6H20 added to Beaker I 1.511 grams Moles of SrCl2-6H20 added to Beaker I 1.511g/266.64 g/mole = 0.00567 moles Theoretical moles of Sr3(PO4)2 0.00567 mole Srdlz6H20 x 1mole Srs(PO4)2/3 mole Srl determined from moles of SrCl2-6H20 0.00189 2. a. Mass of Na3PO4-12H20 with container 3.586 g - 2.583 g Mass of container 1.003...
Number of Unknown Sample Mass of Beaker #1 and Sample a-b=2,129 52.4779 - 50.348g 2.1299 -B0.35g 14.7009 DATA SUMMARY 4 52.4719 Mass of Beaker #1 50.341.4 Mass of Sample d Mass of Beaker 2 + NaCl (dried) 14. 1994 e Mass of Beaker #2 \r. 4019 f Mass of NaCl Recovered 2.4519 Mass of Filter Paper and Sio, (dried) 9 h Mass of Filter Paper 0.8129 Mass of Sio, Recovered J f + i=1.998g Total Mass of NaCl + SiO,...
vula, Results and Discussion Beaker Sample 1 Name Mass of SrCl-6H,0 and container Mass of container Mass of SrCl, 6H 0 added to Beaker I 112.4444 110.2369 2. 2075 0.0048 Moles of SrC1,-6H 0 added to Beaker I Theoretical moles of Sr,(PO)2 determined from moles of SrC1,-6H,0 2. a. Mass of Na,PO, 12H,0 with container Mass of container b. 3.4H 116.2369 1. 2041 0.0032 d. Mass of Na, P0, 12H,0 added to Beaker I Moles of Na PO, 12H,0 added...
Mass of gelatin capsule Mass of capsule and alloy Mass of empty beaker Mass of beaker and displaced water Barometric pressure Temperature of water 0.112 g 0.271 g 141.209 g 307.712 g 745.9 mm Hg 21 C Calculations Mass of alloy Mass of displaced water Volume of displaced water CHN 003 20 I. Read the f (see Appendix H) Volume of hydrogen gas (Hydrogen Temperature of hydrogen gas shuiji assume to be equal to temperature of the water) Vapor pressure...
Questions 1-4
Before reaction: a. unknown number b. weight of beaker, test tube weight of beaker, test tube, KCIO3 KCI d. weight of beaker, test tube, KCIO3 KCI. Mno2 e. weight of KCIO3 KCl sample (c-b) After reaction: f. volume of oxygen collected at laboratory temperature and pressure -22.3% 246.3 n (determined by the amount of water expelled from the flask g. temperature of the oxygen h. water vapor pressure at the measured temperature (table: Handbook of Chemistry and Physics)...
Data Mass of Beaker 1 Mass of Beaker 1 +CaCl2 Mass of Beaker 2 Mass of Beaker 2 + KIO Mass of Watch Glass + Filter Paper 113.3949 114.4089 130.7249 13 2.0769 58.340g 59. Sisg _59.3213 131.6489 131.6349 Mass of Watch Glass + Filter Paper + Ca(IO3)2(after 1" Heating) Mass of Watch Glass + Filter Paper + Ca(IOsh(after 2nd Heating) Mass of Beaker 2 + Residue (after 1" Heating) Mass of Beaker 2 + Residue (after 2nd Heating) Calculations (Show...
A. Freezing Point of Cyclohexane (Solvent 1. Mass of beaker, test tube (g) 2. Freezing point, from cooling curve 3. Instructor's approval of graph 33010 B. Freezing Point of Cyclohexane plus Unknown Solute Trial 1 Parts B.1, B.3) Unknown solute no. Trial 2 (Part B.4 Trial 3 Part B.5 1. Mass of beaker, test tube, cyclohexane (g) 2. Mass of cyclohexane (g) 3. Tared mass of added solute (g) 4. Freezing point, from cooling curve CC) 5. Instructor's approval of...
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