Homework Answers
So,mass
of unknown gas in the flask= 0.97 g
And,molar mass of unknown gas=161.6 g/mol
Add Answer to:
4. A 200.0mL flask of an unknown gas was placed in a hot water bath. The...
can anyone show me how to find M Temperature of boiling water bath Mass of flask...
can anyone show me how to find M
Temperature of boiling water bath Mass of flask + rubber band + foil + condensed gas Mass of flask + rubber band + foil 1ST TRIAL 2ND TRIAL 100.5 °C 100.5 °C 123,713 8 123.452 8 123.351g 103.452 8 16.3628 0.756 8 373.5 k 375.5 0.0821 L'atm/molek Mass of condensed gas Temperature of vapor (converted to K) Universal gas constant, R Barometric Pressure (converted to atm) atm a9986 0.0663 Volume of flask...
Barometric Pressure 0.992 atm Mass of Flask + Foil 56 g Mass of Flask + Foil...
Barometric Pressure 0.992 atm Mass of Flask + Foil 56 g Mass of Flask + Foil + Condensed Liquid 59 g Mass of Condensed Liquid 3 g Volume of Flask 300 ml Temperature of Water Bath when Vaporization Begins 333 K Temperature of Water Bath when Water Begins to Boil 363 K Molar Mass 46 g mol Ideal gas law PV=nRT P=pressure V=volume of gas n=number of moles R=gas constant T=temperature Molar volume V=RT/P Density of gas D=PM x RT Molar mass M=(mRT)/(PV) I...
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...
1) Given the following data, calculate the temperature of the gas in Kelvin, the pressure of the ...
1) Given the following data, calculate the temperature of the gas in Kelvin, the pressure of the gas in atm, the mass of the condensed liquid, the volume of the gas in L, the moles of gas in the flask and then calculate the molar mass of the unknown liquid Mass of empty flask and foil 78.639g 99.3°C 14.4 psi 79.118g Temperature of hot water atm Pressure in lab Mass of flask, foil and condensed unknown liquid AFTER heating and...
name Prelaboratory Assignment: Gas Laws Technical objective: A flask with a sample of gas at room...
name Prelaboratory Assignment: Gas Laws Technical objective: A flask with a sample of gas at room temperature and pressure weighs 97.4842 g. The same flask with air (density 1.17 g/L) weighs 96.8848 g. The same flask filled with water ( 0.998 g/mL) weighs 345.86 g. The pressure in the room is 0.989 atm and the temperature is 22.2°C. 1. Calculate the volume of the flask. 2. Calculate the mass of the air that the flask can hold. 3. Calculate the...
A sample of an unknown gas is found to have a density of 1.53 g/L at...
A sample of an unknown gas is found to have a density of 1.53 g/L at a pressure of 0.612 atm and a temperature of 48 °C. Assume ideal behavior. The molar mass of the unknown gas is ? g/mol.
A sample of an unknown gas is found to have a density of 2.53 g/L at...
A sample of an unknown gas is found to have a density of 2.53 g/L at a pressure of 1.04 atm and a temperature of 49 °C. Assume ideal behavior. The molar mass of the unknown gas is ___________g/mol.
1. What is the pressure of a 50.0L tank that contains 4.04kg of oxygen, O2, at...
1. What is the pressure of a 50.0L tank that contains 4.04kg of oxygen, O2, at 23°C? Assume that the Ideal Gas Law is obeyed and use R=0.0821 L atm/mol K (Show ALL Work) 2. What is the pressure of a 50.0L tank that contains 4.04kg of oxygen, O2, at 40°C? Assume that the Ideal Gas Law is obeyed and use R = 0.0821 L atm/mol K (Show ALL Work)
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...
Two methods were descibed for determining the volume of the flask used for the molar mass...
Two methods were descibed for determining the volume of the
flask used for the molar mass determination. Which method will give
a more precise determination of the volume? Why?
When two acceptable determinations of the weight of vapor needed to fill the flask have been obtained, remove the foil cover from the flask (do not discard) and clean out the flask. Fill the flask to the very rim with tap water, cover with the foil cover, and weigh the flask,...
can anyone show me how to find M
Temperature of boiling water bath Mass of flask + rubber band + foil + condensed gas Mass of flask + rubber band + foil 1ST TRIAL 2ND TRIAL 100.5 °C 100.5 °C 123,713 8 123.452 8 123.351g 103.452 8 16.3628 0.756 8 373.5 k 375.5 0.0821 L'atm/molek Mass of condensed gas Temperature of vapor (converted to K) Universal gas constant, R Barometric Pressure (converted to atm) atm a9986 0.0663 Volume of flask...
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...
1) Given the following data, calculate the temperature of the gas in Kelvin, the pressure of the gas in atm, the mass of the condensed liquid, the volume of the gas in L, the moles of gas in the flask and then calculate the molar mass of the unknown liquid Mass of empty flask and foil 78.639g 99.3°C 14.4 psi 79.118g Temperature of hot water atm Pressure in lab Mass of flask, foil and condensed unknown liquid AFTER heating and...
name Prelaboratory Assignment: Gas Laws Technical objective: A flask with a sample of gas at room temperature and pressure weighs 97.4842 g. The same flask with air (density 1.17 g/L) weighs 96.8848 g. The same flask filled with water ( 0.998 g/mL) weighs 345.86 g. The pressure in the room is 0.989 atm and the temperature is 22.2°C. 1. Calculate the volume of the flask. 2. Calculate the mass of the air that the flask can hold. 3. Calculate the...
1. What is the pressure of a 50.0L tank that contains 4.04kg of oxygen, O2, at 23°C? Assume that the Ideal Gas Law is obeyed and use R=0.0821 L atm/mol K (Show ALL Work) 2. What is the pressure of a 50.0L tank that contains 4.04kg of oxygen, O2, at 40°C? Assume that the Ideal Gas Law is obeyed and use R = 0.0821 L atm/mol K (Show ALL Work)
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...
Two methods were descibed for determining the volume of the
flask used for the molar mass determination. Which method will give
a more precise determination of the volume? Why?
When two acceptable determinations of the weight of vapor needed to fill the flask have been obtained, remove the foil cover from the flask (do not discard) and clean out the flask. Fill the flask to the very rim with tap water, cover with the foil cover, and weigh the flask,...
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