Homework Answers
| 1 | Mass of crucible + cover | 22.9383 g |
| 2 | Mass of crucible + cover + Mg | 23.3509 g |
| 3 | Mass of crucible + cover + MgO after second heating | 23.4229 g |
| 4 | Mass of crucible + cover + MgO after third heating | 23.4809 g |
| 5 | Mass of crucible + cover + MgO after fourth heating | 23.5099 g |
Analysis:
| 1 | Mass of Mg | 0.4126 g |
| 2 | Mass of Mg after second heating | (23.4229 - 22.9383) = 0.4846 g |
| 3 | Mass of Mg after third heating | (23.4809 - 22.9383) = 0.5426 g |
| 4 | Mass of oxygen in product after fourth heating | (23.5099 - 23.350) = 0.1599 g |
| 5 | Mass % of Mg in MgO | 72.18% |
Calculation for mass percent:
Mass % = (Mass of Mg reacted / Mass of MgO produced) × 100
= (0.4126 g / 0.5716 g) × 100
= 72.18%
In the above calculation mass of MgO produced is taken which is obtained after fourth heating i.e. 23.5099 - 22.9383 = 0.5716 g
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Objects crucible cover...
Please help with this this problem, I don't understand what to do. Experiment 10 Data Sheet:...
Please help with this this problem, I don't understand
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Experiment 10 Data Sheet: NIVEL Determining the Empirical Formula of Magnesium Mass of crucible, cover and magnesium metal 57.922, 57.6865 Mass of crucible and cover (after heating empty) Mass of magnesium 0.2348 58.08ą Mass of crucible, cover and the oxide after 1s" heating Mass of your oxide mass of magnesium mass of oxygen (mass of the oxide - mass of magnesium) moles of oxygen moles of magnesium mols...
Empirical formula of Magnesium oxide (5 marks) Mass of crucible and cover + magnesium (before heating)...
Empirical formula of Magnesium oxide (5 marks) Mass of crucible and cover + magnesium (before heating) 23.4190 g Mass of crucible and cover 23.2950 g Mass of magnesium Mass of crucible and cover + magnesium oxide (after heating) 23.4900 g Mass of oxygen N.B. show calculations
Mass of empty crucible with cover Mass of crucible, cover, and tin Mass of crucible, cover,...
Mass of empty crucible with cover Mass of crucible, cover, and tin Mass of crucible, cover, and sample after reaction and prolonged heating 19.66 g 21.76 g 22.33 g A similar experiment was used to determine the empirical formula of an oxide of tin (Sn). Use the data provided to answer the following question. Calculate the number of moles of tin in the oxide of tin sample. Gaseous ammonia (NH3) reacts with gaseous oxygen to form gaseous nitrogen monoxide and...
As a result of this procedure, anything that was in the crucible at the end of...
As a result of this procedure, anything that was in the crucible at the end of the experiment, along with the magnesium oxide product, would cause an error in the figure that is recorded as "mass of oxygen". Would extra mass it the crucible cause the "mass of oxygen" to come out too high or too low? Explain. Here are some data from a similar experiment, to determine the empirical formula of an oxide of tin. Calculate the empirical formula...
Mass of crucible: 50.00 Mass of crucible + magnesium: 51.00 Mass of magnesium g g 0.66...
Mass of crucible: 50.00 Mass of crucible + magnesium: 51.00 Mass of magnesium g g 0.66 g Mass of crucible + magnesium oxide: Mass of crucible + magnesium: Mass of oxygen in oxide: g g Moles of magnesium: (show calculation) Moles of oxygen: (show calculation) Actual Value Rounded Off Value Number of moles of Mg Number of moles of Mg Number of moles of o Number of moles of Mg Empirical Formula of Oxide Formed Determine the percent error using...
Experiment 5 QUANTITY 1. Mass of crucible + cover 2. Mass of crucible + cover +...
Experiment 5 QUANTITY 1. Mass of crucible + cover 2. Mass of crucible + cover + magnesium 3. Mass of magnesium 4. Mass of crucible + cover + magnesium oxide 5. Mass of magnesium oxide 6. Mass of oxygen 7. Atomic mass of magnesium YOUR PARTNER'S HOW TO OBTAIN VALUES VALUES Weigh 19.6939 40.465 Weigh 19.97340.7559 (2) - (1) 10.28g0.29g Weigh 20.1149|40.825g (4)-(1) 10.4219 0.36 (4) - (2) 0.1419 10.07 Periodic Table 24.3 24.3 Periodic Table 16.0 16.0 (3) +...
A. Empirical Formula of Magnesium Oxide mass of crucible and cover + magnesium metal (before heating)...
A. Empirical Formula of Magnesium Oxide mass of crucible and cover + magnesium metal (before heating) 42.36 & 42.11 e 005 0 mass of crucible and cover 46.28 46.05. 011! 46.31 . 10 mass of magneſium metal mass of crucible and cover + magnesium oxide (after heating ) 42.49 & 0 bbb 10 0 mass of combined oxygen (after heating - before heating) w the calculation of the empirical formula for trial I (see Example Exercise 1).
Experiment 4. Determination of a Formula Read Lab Manual Experiment 4 Determination of Formula (pp 25-29)...
Experiment 4. Determination of a Formula Read Lab Manual Experiment 4 Determination of Formula (pp 25-29) before watching video and attempting this exercise. Use the provided data to complete the worksheet. Experiment 4. Determination of a Formula Data Mass (g) 30.857 31.357 Empty crucible w/lid Crucible w/lid and magnesium turnings Crucible w/lid and magnesium oxide initial 31.667 31.666 Crucible w/lid and magnesium oxide (final wt Calculations (You must provide word formula and numerical calculation) 1. Mass of magnesium - 2.Calculated...
7. A 0.250-g sample of calcium metal is heated in a 38.500-g crucible to form calcium...
7. A 0.250-g sample of calcium metal is heated in a 38.500-g crucible to form calcium oxide. The resulting crucible and product weigh 38.850 g. Refer to Example Exercise 1 and determine the empirical formula of calcium oxide. DATE DATA TABLE A Empirical Formula of Magnesium Oxide mass of crucible and cover + magnesium metal (before heating) mass of crucible and cover mass of magnesium metal mass of crucible and cover + magnesium oxide (after heating ) 0000 mass of...
Please answer questions 1-7 and fill out the equation at the top. Thanks! LAB-Stoichiometry/Empirical formula Name...
Please answer questions 1-7 and fill out the equation at the
top. Thanks!
LAB-Stoichiometry/Empirical formula Name Purpose: To predict the mass of magnesium oxide (MgO) formed by reacting To determine actual yield, theoretical yield and percent yield of pro Balance the equation: Moterials: Mg ribbon, Bunsen burner, balance, crucible tongs, crucible w/id etc- Procedure: place a check after you perform each step 1Go to the scale, check for zero. Record the mass of the crucible +lid and d it below...
Please help with this this problem, I don't understand
what to do.
Experiment 10 Data Sheet: NIVEL Determining the Empirical Formula of Magnesium Mass of crucible, cover and magnesium metal 57.922, 57.6865 Mass of crucible and cover (after heating empty) Mass of magnesium 0.2348 58.08ą Mass of crucible, cover and the oxide after 1s" heating Mass of your oxide mass of magnesium mass of oxygen (mass of the oxide - mass of magnesium) moles of oxygen moles of magnesium mols...
Empirical formula of Magnesium oxide (5 marks) Mass of crucible and cover + magnesium (before heating) 23.4190 g Mass of crucible and cover 23.2950 g Mass of magnesium Mass of crucible and cover + magnesium oxide (after heating) 23.4900 g Mass of oxygen N.B. show calculations
Mass of empty crucible with cover Mass of crucible, cover, and tin Mass of crucible, cover, and sample after reaction and prolonged heating 19.66 g 21.76 g 22.33 g A similar experiment was used to determine the empirical formula of an oxide of tin (Sn). Use the data provided to answer the following question. Calculate the number of moles of tin in the oxide of tin sample. Gaseous ammonia (NH3) reacts with gaseous oxygen to form gaseous nitrogen monoxide and...
As a result of this procedure, anything that was in the crucible at the end of the experiment, along with the magnesium oxide product, would cause an error in the figure that is recorded as "mass of oxygen". Would extra mass it the crucible cause the "mass of oxygen" to come out too high or too low? Explain. Here are some data from a similar experiment, to determine the empirical formula of an oxide of tin. Calculate the empirical formula...
Mass of crucible: 50.00 Mass of crucible + magnesium: 51.00 Mass of magnesium g g 0.66 g Mass of crucible + magnesium oxide: Mass of crucible + magnesium: Mass of oxygen in oxide: g g Moles of magnesium: (show calculation) Moles of oxygen: (show calculation) Actual Value Rounded Off Value Number of moles of Mg Number of moles of Mg Number of moles of o Number of moles of Mg Empirical Formula of Oxide Formed Determine the percent error using...
Experiment 5 QUANTITY 1. Mass of crucible + cover 2. Mass of crucible + cover + magnesium 3. Mass of magnesium 4. Mass of crucible + cover + magnesium oxide 5. Mass of magnesium oxide 6. Mass of oxygen 7. Atomic mass of magnesium YOUR PARTNER'S HOW TO OBTAIN VALUES VALUES Weigh 19.6939 40.465 Weigh 19.97340.7559 (2) - (1) 10.28g0.29g Weigh 20.1149|40.825g (4)-(1) 10.4219 0.36 (4) - (2) 0.1419 10.07 Periodic Table 24.3 24.3 Periodic Table 16.0 16.0 (3) +...
A. Empirical Formula of Magnesium Oxide mass of crucible and cover + magnesium metal (before heating) 42.36 & 42.11 e 005 0 mass of crucible and cover 46.28 46.05. 011! 46.31 . 10 mass of magneſium metal mass of crucible and cover + magnesium oxide (after heating ) 42.49 & 0 bbb 10 0 mass of combined oxygen (after heating - before heating) w the calculation of the empirical formula for trial I (see Example Exercise 1).
Experiment 4. Determination of a Formula Read Lab Manual Experiment 4 Determination of Formula (pp 25-29) before watching video and attempting this exercise. Use the provided data to complete the worksheet. Experiment 4. Determination of a Formula Data Mass (g) 30.857 31.357 Empty crucible w/lid Crucible w/lid and magnesium turnings Crucible w/lid and magnesium oxide initial 31.667 31.666 Crucible w/lid and magnesium oxide (final wt Calculations (You must provide word formula and numerical calculation) 1. Mass of magnesium - 2.Calculated...
7. A 0.250-g sample of calcium metal is heated in a 38.500-g crucible to form calcium oxide. The resulting crucible and product weigh 38.850 g. Refer to Example Exercise 1 and determine the empirical formula of calcium oxide. DATE DATA TABLE A Empirical Formula of Magnesium Oxide mass of crucible and cover + magnesium metal (before heating) mass of crucible and cover mass of magnesium metal mass of crucible and cover + magnesium oxide (after heating ) 0000 mass of...
Please answer questions 1-7 and fill out the equation at the
top. Thanks!
LAB-Stoichiometry/Empirical formula Name Purpose: To predict the mass of magnesium oxide (MgO) formed by reacting To determine actual yield, theoretical yield and percent yield of pro Balance the equation: Moterials: Mg ribbon, Bunsen burner, balance, crucible tongs, crucible w/id etc- Procedure: place a check after you perform each step 1Go to the scale, check for zero. Record the mass of the crucible +lid and d it below...
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