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III. DATA: 1.) Average mass of tea in tea bag 2.) mass of empty beaker 2.535...
Mass of empty beaker 55.202 g. Mass of beaker plus manganese 55.276 g. Mass of manganese...
Mass of empty beaker 55.202 g.
Mass of beaker plus manganese 55.276 g.
Mass of manganese used 0.074 g.
Moles of manganese used???
Theoritical yield of manganese (II) chloride (moles) ???
SYNTHESIS B - MANGANESE(II) CHLORIDE Laboratory Report Observations, Data and Calculations 1. (2 marks) Describe your observations of the action of the hydrochloric acid on the manganese. 2. (3 marks) Fill in the data table: mass of empty beaker mass of beaker plus manganese mass of manganese used moles...
Data Table 1. Mass of Beaker 49.93g 2. Mass of beaker + Na2CO3 50.95g 3....
Data Table 1. Mass of Beaker 49.93g 2. Mass of beaker + Na2CO3 50.95g 3. Mass of Na2CO3 added into the beaker (line 2-line 1) 1.02g 4. Mass of graduated cylinder with 3M HCl solution 12.68g 5. Mass of graduated cylinder without 3M HCl solution 4.44g 6. Mass of 3M HCL solution added into the beaker (line4-line5) 8.24g 7. Mass of beaker + reactants (HCl+ Na2CO3; line 2+line 6) 59.19g 8. Mass of beaker + products without CO2 (after...
1. Outline a separation scheme for isolating pure caffeine from tea. Use a flowchart that begins...
1. Outline a separation scheme for isolating pure caffeine from tea. Use a flowchart that begins with the tea bag and ends with the pure caffeine. Explain what is being separated at each step throughout the procedure. 2. Why was the sodium carbonate added to the tea solution? 3. The crude caffeine isolated from tea often has a green tinge. Why? 4. What are some possible explanations for why the melting point of your isolated caffeine was lower than the...
F17 UTA-701 Measurement of Volume. Complete the following calculations. a. 50 ml, beaker 2. #1 #2...
F17 UTA-701 Measurement of Volume. Complete the following calculations. a. 50 ml, beaker 2. #1 #2 #3 % e2 sees 56.6y a, 1 . Mass of beaker with "-30mL" ofwater a.2. Mass of empty beaker a.3. Mass of water a.4. True volume in beaker (calculated from mass and density) a.5. Observed Volume (as read from beaker)9 m a.6. Percent (%) error a7. Average % error Because each measurement was made with a slightly different amount of water, we will normalize...
1. Draw the structure of caffeine indicating its molecular formula (CwHxNyOz) and molar mass. 2. On the average, people...
1. Draw the structure of caffeine indicating its molecular formula (CwHxNyOz) and molar mass. 2. On the average, people use one teaspoon (2.50 g) of instant tea to make an 8-oz glass of iced tea. The average glass of iced tea contains 10 mg of caffeine per oz. (a) Calculate the mass percent of caffeine in a glass of iced tea. 3. A student extracted 1.15 g of crude caffeine from 110.0 g of tea powder. After purification, he obtained...
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...
Lelher Name Section Date DATA SHEET: EXPERIMENT 15 Mass of beaker 1. Mass of beaker and NaHCO3 2 Mass of NaHCO 1995...
Lelher Name Section Date DATA SHEET: EXPERIMENT 15 Mass of beaker 1. Mass of beaker and NaHCO3 2 Mass of NaHCO 1995 3. 80 Volume of 3.0 M HCl required to react with NalHCO 4. ml (Show set-up) 2+1+12.014x 14 Actual volume of 3.0 M HCI used 5. mL అంట 5మి 6 (after 1 heating) Mass of beaker and NaCl (after 2nd heating) (after 3rd heating, if needed) Actual mass of NaCl produced in reaction 7. 8. Mass of NaCl...
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...
Data Mass of Beaker 1 13.3949 _ T\५. ५०४१ 130.7 249 13 R.0269 Mass of Beaker...
Data Mass of Beaker 1 13.3949 _ T\५. ५०४१ 130.7 249 13 R.0269 Mass of Beaker 1 + CaCl2 Mass of Beaker 2 Mass of Beaker 2 + KIO S8.3409 Mass of Watch Glass + Filter Paper S9.SIS9 Mass of Watch Glass + Filter Paper + Ca(IO3)2(after 1st Heating) 51. S219 Mass of Watch Glass + Filter Paper + Ca(IO3)2(after 2nd Heating) 131.6489 Mass of Beaker 2 +Residue (after 1st Heating) 131-6349 Mass of Beaker 2 + Residue (after 2nd...
---Percent yield of Ca3(PO4)2 from CaCL2 Mass of beaker + CaCL2 = 342.231g, Mass of beaker...
---Percent yield of Ca3(PO4)2 from CaCL2 Mass of beaker + CaCL2 = 342.231g, Mass of beaker = 341.852g, Mass of filter paper + Ca3(PO4)2 ppt = 0.726, Mass of filter paper = 0.506 1. Show the calculation for theoretical yield of Ca3(PO4)2 2. Show the calculation for percent yield of Ca3(PO4)2
Mass of empty beaker 55.202 g.
Mass of beaker plus manganese 55.276 g.
Mass of manganese used 0.074 g.
Moles of manganese used???
Theoritical yield of manganese (II) chloride (moles) ???
SYNTHESIS B - MANGANESE(II) CHLORIDE Laboratory Report Observations, Data and Calculations 1. (2 marks) Describe your observations of the action of the hydrochloric acid on the manganese. 2. (3 marks) Fill in the data table: mass of empty beaker mass of beaker plus manganese mass of manganese used moles...
1. Outline a separation scheme for isolating pure caffeine from tea. Use a flowchart that begins with the tea bag and ends with the pure caffeine. Explain what is being separated at each step throughout the procedure. 2. Why was the sodium carbonate added to the tea solution? 3. The crude caffeine isolated from tea often has a green tinge. Why? 4. What are some possible explanations for why the melting point of your isolated caffeine was lower than the...
F17 UTA-701 Measurement of Volume. Complete the following calculations. a. 50 ml, beaker 2. #1 #2 #3 % e2 sees 56.6y a, 1 . Mass of beaker with "-30mL" ofwater a.2. Mass of empty beaker a.3. Mass of water a.4. True volume in beaker (calculated from mass and density) a.5. Observed Volume (as read from beaker)9 m a.6. Percent (%) error a7. Average % error Because each measurement was made with a slightly different amount of water, we will normalize...
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...
Lelher Name Section Date DATA SHEET: EXPERIMENT 15 Mass of beaker 1. Mass of beaker and NaHCO3 2 Mass of NaHCO 1995 3. 80 Volume of 3.0 M HCl required to react with NalHCO 4. ml (Show set-up) 2+1+12.014x 14 Actual volume of 3.0 M HCI used 5. mL అంట 5మి 6 (after 1 heating) Mass of beaker and NaCl (after 2nd heating) (after 3rd heating, if needed) Actual mass of NaCl produced in reaction 7. 8. Mass of NaCl...
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...
Data Mass of Beaker 1 13.3949 _ T\५. ५०४१ 130.7 249 13 R.0269 Mass of Beaker 1 + CaCl2 Mass of Beaker 2 Mass of Beaker 2 + KIO S8.3409 Mass of Watch Glass + Filter Paper S9.SIS9 Mass of Watch Glass + Filter Paper + Ca(IO3)2(after 1st Heating) 51. S219 Mass of Watch Glass + Filter Paper + Ca(IO3)2(after 2nd Heating) 131.6489 Mass of Beaker 2 +Residue (after 1st Heating) 131-6349 Mass of Beaker 2 + Residue (after 2nd...
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