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2. Define, explain, and provide an example of resonance structures. 3. Provide valid LDS for the...
STRUCTURES AN PROPERTIES OF POST-LAB QUESTIONS LABORATORY 9 Name Date Section 1. Define, explain, and provide...
STRUCTURES AN PROPERTIES OF POST-LAB QUESTIONS LABORATORY 9 Name Date Section 1. Define, explain, and provide an example of isomers. 2. Define, explain, and provide an example of resonance structures. 1. Using the standard curve for the N. vs. % Al graph, the vapor pressure of water appendix (Appendix I), and the following information, determine the % Al in an alloy sample.
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...
Please complete these calculations and show all of the work required for understanding purposes. The sample...
Please complete these calculations and show all of the work
required for understanding purposes.
The
sample is the mass of the aluminum
DATA: Trial 2 Trial 1 Mass of aluminum sample Volume of Ha collected 0.0309 39,0ML 22°c 16/mmHg Temperature at gas-collection site Barometric pressure CALCULATIONS: 1. Vapor pressure of water (from table on page 51) 2. Pressure of "dry" H2 collected 3. Amount of Hz produced (mol) 4. Amount of Al reacted (mol) 5. Mass of Al in soda...
Date Post-Lab Questions If your partner did not take into account the vapor pressure of water whe...
Date Post-Lab Questions If your partner did not take into account the vapor pressure of water when calculating the moles of hydrogen produced, would the mass of Mg that was calculated at the end of the experiment be too high or too low? nced haf t ribbon are coated with white MgO, would this cause the mass of Mg that you calculate to be too high or too low? Why? 3. Instead of a strip of pure Mg nibbon, you...
Prelaboratory Assignment: Analysis of an Aluminum-Zinc Alloy having a difficult time figuring out how to tackle...
Prelaboratory Assignment: Analysis of an Aluminum-Zinc
Alloy
having a difficult time figuring out how to tackle the
following:
please help! thank you.
equation 5 is included in here
Name: Date: Section: Prelaboratory Assignment: Analysis of an Aluminum-Zinc Alloy 1. On the following page, construct a graph of N vs % AL. To do this, refer to equation 5 and the discussion preceding it. Calculate for % Al=0.25.50.75, and 100. Place these points on the graph and Draw the best straight...
DATA TABLE Trial 1 Trial 2 Mass of Erlenmeyer flask, rubber band and foil cover (g) 90.560 90.10 Temperature of wat...
DATA TABLE Trial 1 Trial 2 Mass of Erlenmeyer flask, rubber band and foil cover (g) 90.560 90.10 Temperature of water bath (°C) 100t 99.1 Mass of Erlenmeyer flask, rubber band, foil cover and condensed 0819 gas sample (9) Mass of the condensed gas sample (9) 251.59 Barometric (atmospheric) pressure (mmHg) 128.96 28.93 Volume of the Erlenmeyer flask (mL) 170 170 Molar mass of the unknown sample (g/mole) Average molar mass (g/mol): DATA ANALYSIS (Show your calculations) 1. Determine the...
EXAMPLE 6-2 Using a Manometer to Measure Gas Pressure When the manometer in Figure 6-5(c) is...
EXAMPLE 6-2 Using a Manometer to Measure Gas Pressure When the manometer in Figure 6-5(c) is filled with liquid mercury (d = 13.6 g/cm"), the barometric pressure is 748.2 mmHg, and the difference in mercury levels is 8.6 mmHg. What is the gas pressure Pgas? Analyze We must first establish which is greater: the barometric pressure or the gas pressure. In Figure 6-5(c), the baro- metric pressure forces liquid mercury down the tube toward the gas sample. The barometric pressure...
Data Sheet Unknown Number Sample 2 Sample 1 Volume of Ha gas (ml.) 22.65 22.12 Temperature...
Data Sheet Unknown Number Sample 2 Sample 1 Volume of Ha gas (ml.) 22.65 22.12 Temperature of water (C) 20 8 0 20.8 C Height of water column (mm) 324.9 210.2 Vapor pressure of water at above temperature (mmlig) 7.5 17.5 Barometric pressure (mmHg) 747.776 구4구. 구구6 CALCULATIONS (Show calculations) Pressure ofthe column of water (mmHg) Pressure of dry hydrogen (mmHg) Moles of Hydrogen Mass of Magnesium ribbon (g) Average mass of magnesium ribbon (g) Vapor Pressure of Water at...
1. On the following page, construct a graph of rgen(moles h hydrogen per gram of sample)...
1. On the following page, construct a graph of rgen(moles h hydrogen per gram of sample) vs. %Al. Use Equation (12): Hober,2 (10 Al (0.0556)+ )(0.0556) + (100-%AL)( 100-%Al (o.0153) Hydrogsm100 (12) Simply solve this equation for nHydrogm using %A1-0 and %AI-100, then draw a straight line through these points. 2. Two students weigh a gelatin capsule (0.112 g).Next they add pieces of aluminum-zinc alloy to the capsule and weigh the capsule and alloy (0.271 g). They weigh out an...
Date: 7 Record the barometric pressure. 8. Repeat this experiment with the second piece of magnesium...
Date: 7 Record the barometric pressure. 8. Repeat this experiment with the second piece of magnesium ribbon. 9. Untwist the wire from the piece of fiberglass. Rinse the wire, fiberglass square, and stopper, place them in the container, and return the container to the instructor's desk. The table of temperature/Vapor pressure of water is in your textbook and in the back of your laboratory manual. The density of mercury is 13.6 g/mL. 61302083 Data Sheet Unknown Number Sample 2 40.8m2...
STRUCTURES AN PROPERTIES OF POST-LAB QUESTIONS LABORATORY 9 Name Date Section 1. Define, explain, and provide an example of isomers. 2. Define, explain, and provide an example of resonance structures. 1. Using the standard curve for the N. vs. % Al graph, the vapor pressure of water appendix (Appendix I), and the following information, determine the % Al in an alloy sample.
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...
Please complete these calculations and show all of the work
required for understanding purposes.
The
sample is the mass of the aluminum
DATA: Trial 2 Trial 1 Mass of aluminum sample Volume of Ha collected 0.0309 39,0ML 22°c 16/mmHg Temperature at gas-collection site Barometric pressure CALCULATIONS: 1. Vapor pressure of water (from table on page 51) 2. Pressure of "dry" H2 collected 3. Amount of Hz produced (mol) 4. Amount of Al reacted (mol) 5. Mass of Al in soda...
Date Post-Lab Questions If your partner did not take into account the vapor pressure of water when calculating the moles of hydrogen produced, would the mass of Mg that was calculated at the end of the experiment be too high or too low? nced haf t ribbon are coated with white MgO, would this cause the mass of Mg that you calculate to be too high or too low? Why? 3. Instead of a strip of pure Mg nibbon, you...
Prelaboratory Assignment: Analysis of an Aluminum-Zinc
Alloy
having a difficult time figuring out how to tackle the
following:
please help! thank you.
equation 5 is included in here
Name: Date: Section: Prelaboratory Assignment: Analysis of an Aluminum-Zinc Alloy 1. On the following page, construct a graph of N vs % AL. To do this, refer to equation 5 and the discussion preceding it. Calculate for % Al=0.25.50.75, and 100. Place these points on the graph and Draw the best straight...
DATA TABLE Trial 1 Trial 2 Mass of Erlenmeyer flask, rubber band and foil cover (g) 90.560 90.10 Temperature of water bath (°C) 100t 99.1 Mass of Erlenmeyer flask, rubber band, foil cover and condensed 0819 gas sample (9) Mass of the condensed gas sample (9) 251.59 Barometric (atmospheric) pressure (mmHg) 128.96 28.93 Volume of the Erlenmeyer flask (mL) 170 170 Molar mass of the unknown sample (g/mole) Average molar mass (g/mol): DATA ANALYSIS (Show your calculations) 1. Determine the...
EXAMPLE 6-2 Using a Manometer to Measure Gas Pressure When the manometer in Figure 6-5(c) is filled with liquid mercury (d = 13.6 g/cm"), the barometric pressure is 748.2 mmHg, and the difference in mercury levels is 8.6 mmHg. What is the gas pressure Pgas? Analyze We must first establish which is greater: the barometric pressure or the gas pressure. In Figure 6-5(c), the baro- metric pressure forces liquid mercury down the tube toward the gas sample. The barometric pressure...
Data Sheet Unknown Number Sample 2 Sample 1 Volume of Ha gas (ml.) 22.65 22.12 Temperature of water (C) 20 8 0 20.8 C Height of water column (mm) 324.9 210.2 Vapor pressure of water at above temperature (mmlig) 7.5 17.5 Barometric pressure (mmHg) 747.776 구4구. 구구6 CALCULATIONS (Show calculations) Pressure ofthe column of water (mmHg) Pressure of dry hydrogen (mmHg) Moles of Hydrogen Mass of Magnesium ribbon (g) Average mass of magnesium ribbon (g) Vapor Pressure of Water at...
1. On the following page, construct a graph of rgen(moles h hydrogen per gram of sample) vs. %Al. Use Equation (12): Hober,2 (10 Al (0.0556)+ )(0.0556) + (100-%AL)( 100-%Al (o.0153) Hydrogsm100 (12) Simply solve this equation for nHydrogm using %A1-0 and %AI-100, then draw a straight line through these points. 2. Two students weigh a gelatin capsule (0.112 g).Next they add pieces of aluminum-zinc alloy to the capsule and weigh the capsule and alloy (0.271 g). They weigh out an...
Date: 7 Record the barometric pressure. 8. Repeat this experiment with the second piece of magnesium ribbon. 9. Untwist the wire from the piece of fiberglass. Rinse the wire, fiberglass square, and stopper, place them in the container, and return the container to the instructor's desk. The table of temperature/Vapor pressure of water is in your textbook and in the back of your laboratory manual. The density of mercury is 13.6 g/mL. 61302083 Data Sheet Unknown Number Sample 2 40.8m2...
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