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EXPERIMENT 10 DATE y lonelisto TODPNAME SECTION OEM omdat POSTLABORATORY ASSIGNMENT 1....
EXPERIMENT 10 DATE NAME POSTLABORATORY ASSIGNMENT 1. What is the density of xenon gas at standard...
EXPERIMENT 10 DATE NAME POSTLABORATORY ASSIGNMENT 1. What is the density of xenon gas at standard conditions? 2. What is the volume that is occupied by 0.819 g of helium at standard conditions? 3. Ozone, a component of smog, is a toxic substance that consists of only oxygen atoms. If ozone has a density of 2.1 g/L at standard conditions, then what is the chemical formula of ozone? Hint: Determine the molar mass of ozone. H otels in 4. The...
Analysis of Vinegar EXPERIMENT NAME SECTION DATE POSTLABORATORY ASSIGNMENT 1. A standard nitric acid solution is...
Analysis of Vinegar EXPERIMENT NAME SECTION DATE POSTLABORATORY ASSIGNMENT 1. A standard nitric acid solution is prepared using 0.425 g of sodium carbonate, NaCO3. Find the molarity of the acid if 33.25 mL are required to reach a permanent endpoint. 2 HNO, (aq) + Na2CO3(s) + 2 NaNO3(aq) + H2O(l) + CO2(g) 2 H OT 2. A 10.0-ml sample of household ammonia solution required 27.50 mL of 0.241 M HNO3 for neutralization. Calculate (a) the molar concentration of the ammonia...
Name: Section: Gas Law Practice (IC-6) 1. At what temperature will 5.00 g of Cl, exert...
Name: Section: Gas Law Practice (IC-6) 1. At what temperature will 5.00 g of Cl, exert a pressure of 900. torrat a volume of 750 ml? 2. What pressure will be exerted by 25 g of CO, at a temperature of 25 "C and a volume of 500 mL? 3. Find the number of grams of CO, that exert a pressure of 785 torrs at a volume of 32.5 L and a temperature of 32°C 4. An elemental gas has...
ANSWER ALL QUESTIONS 7-12 or don’t bother 7. If 25.0 mL of 1.50 M CuSO4 is...
ANSWER ALL QUESTIONS 7-12 or don’t bother
7. If 25.0 mL of 1.50 M CuSO4 is diluted to 250.0 mL with pure water, what is the molar concentration of CuSO4 after dilution? 8. A gas occupies a volume of 2.5 L at a pressure of 1.0 atm. What volume will it occupy, at the same temperature, at a pressure of 0.25 atm? 9. A 400 cm3 steel cylinder holds 1.50 g of ethanol, C2HsOH, vapor at 250 °C. What is...
Part 1. The air in a bicycle tire is bubbled through water and collected at 25∘C. If the total volume of gas collected i...
Part 1. The air in a bicycle tire is bubbled through water and collected at 25∘C. If the total volume of gas collected is 5.60 L at a temperature of 25∘C and a pressure of 760 torr, how many moles of gas were in the bicycle tire? - Part 2. A 295-mL flask contains pure helium at a pressure of 755 torr . A second flask with a volume of 480 mL contains pure argon at a pressure of 714...
Data: Mass of flask filled with air - 150.9425 g Mass of flask filled with CO2...
Data: Mass of flask filled with air - 150.9425 g Mass of flask filled with CO2 Trial 1 - 150.9775 g Mass of flask filled with CO2 Trial 2 - 150.9805 g Average mass flask filled with CO2 - 150.979 g Temperature of CO2 - 296.15 K Barometer reading - 1.0 atm Density of water at room temp - 0.9978g/mL Density of dry air in flask at room temp - 1.201g/L Calculations: Mass of water in flask - 392.85 mL...
Please help with these two 1. A flask is filled with 1.08 moles of a gas...
Please help with these two
1. A flask is filled with 1.08 moles of a gas at 20.7 K and
646.8 mm Hg. The flask is then opened and an additional 1.33 moles
are added. The temperature of the flask is then changed to 272.4 K.
What is the pressure (in atm) of the flask under these final
conditions?
2. The density of a gas is 4.22 g/L at a pressure of 1.77 atm
and a temperature of 14.66 °C. What...
Problems Section 1. A 0.678 gram sample of gas occupies 0.214 L at standard conditions, what...
Problems Section 1. A 0.678 gram sample of gas occupies 0.214 L at standard conditions, what is the molar mass of the gas? PronRT 1 (0,214) = NA 273.15 n = R-273.15 n=104,684 -:675 X=18 2. A sample of gas occupies 250 mL at 37°C and 730. torr, what volume would the gas occupy at standard conditions? ,250L 310k 730 + 20.5 10.0206-310 .216L n=0.0094396539 V nr. 273.15 = 2115 3. A 5.00 mL sample of an unknown liquid is...
10/110 Section CHE 100 Section Experiment Date: Lab Partner: Experimental Determination of the Gas Constant Experimental...
10/110 Section CHE 100 Section Experiment Date: Lab Partner: Experimental Determination of the Gas Constant Experimental Data A (a) Mass of Magnesium metal used (b) Volume of H, a collected (c) Temperature of collected () Atmospheric Pressure (c) Temperature of Water in bath (bucket) Vapor Pressure of Water above temperature 0.02659 9. 1220c Zalm Hg 2. c 12.2.. Data Analysis • Using your experimental de determine the value of the count Show all your conversions and calculations for each step...
How do I do 28-35 28. A sample of gas measures 5.00 liters at 1.00 atm....
How do I do 28-35
28. A sample of gas measures 5.00 liters at 1.00 atm. To change the volume to 3.50 liters at constant temperature, what pressure must be applied? 29. How many moles of by drogen (He) fill a weather balloon whose volume is 250 liters at a pressure of 0.50 atm with a temperature of-10.0 C? 30. What is the pressure of 3.50 moles of helium at -50.0'C in a rigid container whose volume is 25.0 liters?...
EXPERIMENT 10 DATE NAME POSTLABORATORY ASSIGNMENT 1. What is the density of xenon gas at standard conditions? 2. What is the volume that is occupied by 0.819 g of helium at standard conditions? 3. Ozone, a component of smog, is a toxic substance that consists of only oxygen atoms. If ozone has a density of 2.1 g/L at standard conditions, then what is the chemical formula of ozone? Hint: Determine the molar mass of ozone. H otels in 4. The...
Analysis of Vinegar EXPERIMENT NAME SECTION DATE POSTLABORATORY ASSIGNMENT 1. A standard nitric acid solution is prepared using 0.425 g of sodium carbonate, NaCO3. Find the molarity of the acid if 33.25 mL are required to reach a permanent endpoint. 2 HNO, (aq) + Na2CO3(s) + 2 NaNO3(aq) + H2O(l) + CO2(g) 2 H OT 2. A 10.0-ml sample of household ammonia solution required 27.50 mL of 0.241 M HNO3 for neutralization. Calculate (a) the molar concentration of the ammonia...
Name: Section: Gas Law Practice (IC-6) 1. At what temperature will 5.00 g of Cl, exert a pressure of 900. torrat a volume of 750 ml? 2. What pressure will be exerted by 25 g of CO, at a temperature of 25 "C and a volume of 500 mL? 3. Find the number of grams of CO, that exert a pressure of 785 torrs at a volume of 32.5 L and a temperature of 32°C 4. An elemental gas has...
ANSWER ALL QUESTIONS 7-12 or don’t bother
7. If 25.0 mL of 1.50 M CuSO4 is diluted to 250.0 mL with pure water, what is the molar concentration of CuSO4 after dilution? 8. A gas occupies a volume of 2.5 L at a pressure of 1.0 atm. What volume will it occupy, at the same temperature, at a pressure of 0.25 atm? 9. A 400 cm3 steel cylinder holds 1.50 g of ethanol, C2HsOH, vapor at 250 °C. What is...
Please help with these two
1. A flask is filled with 1.08 moles of a gas at 20.7 K and
646.8 mm Hg. The flask is then opened and an additional 1.33 moles
are added. The temperature of the flask is then changed to 272.4 K.
What is the pressure (in atm) of the flask under these final
conditions?
2. The density of a gas is 4.22 g/L at a pressure of 1.77 atm
and a temperature of 14.66 °C. What...
Problems Section 1. A 0.678 gram sample of gas occupies 0.214 L at standard conditions, what is the molar mass of the gas? PronRT 1 (0,214) = NA 273.15 n = R-273.15 n=104,684 -:675 X=18 2. A sample of gas occupies 250 mL at 37°C and 730. torr, what volume would the gas occupy at standard conditions? ,250L 310k 730 + 20.5 10.0206-310 .216L n=0.0094396539 V nr. 273.15 = 2115 3. A 5.00 mL sample of an unknown liquid is...
10/110 Section CHE 100 Section Experiment Date: Lab Partner: Experimental Determination of the Gas Constant Experimental Data A (a) Mass of Magnesium metal used (b) Volume of H, a collected (c) Temperature of collected () Atmospheric Pressure (c) Temperature of Water in bath (bucket) Vapor Pressure of Water above temperature 0.02659 9. 1220c Zalm Hg 2. c 12.2.. Data Analysis • Using your experimental de determine the value of the count Show all your conversions and calculations for each step...
How do I do 28-35
28. A sample of gas measures 5.00 liters at 1.00 atm. To change the volume to 3.50 liters at constant temperature, what pressure must be applied? 29. How many moles of by drogen (He) fill a weather balloon whose volume is 250 liters at a pressure of 0.50 atm with a temperature of-10.0 C? 30. What is the pressure of 3.50 moles of helium at -50.0'C in a rigid container whose volume is 25.0 liters?...
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