Molar Mass of Volatile liquid
A volatile liquid is vaporizedat a temperature of 89.3ºC in a container with a volume of141.3 mL. At the time of the experiment, the room pressure wasfound to be755.5 mmHg. If the mass of the vapor was found to be0.3145 g, what is the molar mass of the volatileliquid?
Homework Answers
Pressure, P = 755.5 mmHg= 0.994 atmVolume, V = 141.3 mL= 0.1413 LTemperature, T = 89.3 0C=362.3KMass of gas = 0.3145 gAccording to ideal gas equationPV = nRT= (mass/molarmass) RT∴ Molar mass = mass * RT /PV=(0.3145 g )(0.0821 Latm/K.mol)(362.3 K)/(0.994 atm)(0.1413L)=66.6 g/mol
THE MOLAR MASS OF A VOLATILE LIQUID 1. A foil-covered flask was found to have a...
THE MOLAR MASS OF A VOLATILE LIQUID 1. A foil-covered flask was found to have a mass of 161.38 have a mass of 167.38 g. A volatile liquid was placed L00.0°C at a barometric pressure of 743.8 mm Hg. The foil-covered inside and heated to 100.0°C at a barometric press flask containing the vapor had a mass the molar mass of this volatile liquid. 's the vapor had a mass of 167.71 g and a volume of 147.0 mL. Calculate...
Molecular Mass of a Volatile Liquid 1. The atmospheric pressure of a hot summer day in...
Molecular Mass of a Volatile Liquid 1. The atmospheric pressure of a hot summer day in NYC is 29.94 inHg. Calculate this value in mmile and am 2. The atmospheric pressure of a cold winter day in NYC is 25.94 inHg. Calculate this value in Pa. 3. We set up an experiment utilizing the Dumas method to calculate the molar mass of an unknown chemical. A 4.00 mL pure liquid sample of this chemical is vaporized in an Erlenmeyer flask...
Chame nsead tu age 06-17 Experiment 8: Molar Mass of a Volatile Liquid Purpose To determine...
Chame nsead tu age 06-17 Experiment 8: Molar Mass of a Volatile Liquid Purpose To determine the molar mass of a pure substance we need to find out (a) the number of moles in a given sample, and (b) the mass of the same sample. Molar mass is then: mass divided by moles Introduction Using the ideal gas equation, PV= nRT, we can determine the number of moles (n) of gas or vapor under measured conditions of pressure (P), volume...
Im not sure how to calculate the absolute percent error? . Calculate the average molar volume....
Im not sure how to calculate the absolute percent error?
. Calculate the average molar volume. 24.45% mot 23 lunches =47.45 = 23.725 Ymo . Calculate the absolute % error for the average molar volume. Trial 1 Trial 2 Mass of Mg ribbon (g) 10.0541 9 10.07839 Barometric pressure (mmHg) 756 mitte 756mmalta (Proom) Temperature of the room (°C) (T2) Temperature of water inside beaker (°C) 121.060 mmHg 120.615 mm Hg. Pwater (mm Hg) Vapor pressure of water found in...
The pressure inside a sealed Erlenmeyer flask containing 5 mL of a volatile liquid was measured...
The pressure inside a sealed Erlenmeyer flask containing 5 mL of a volatile liquid was measured to be 345 mmHg at 326 K. Prior to introducing the volatile liquid, the pressure inside the Erlenmeyer flask was determined to be 156 mmHg at 295 K. What is the vapor pressure of the volatile liquid (in mmHg) at 326 K Your Answer: I Answer
How do you solve Part D. Calculations (Moles of vapor, mass of vapor, and molar mass...
How do you solve Part D.
Calculations (Moles of vapor, mass of vapor, and molar mass of
vapor)
3. a. The following data were recorded in determining the molar mass of a volatile liquid following the Experimental Procedure of this experiment. Complete the table for analysis. (See Report Sheet.) Record calculated values with the correct number of significant figures. Calculation Zone 74.722 Part D.1 98.7 74.921_ Part D.2 A. Preparing the Sample 1. Mass of dry flask, foil, and rubber...
acetaldehyde is a common liquid compound that vaporizes readily. Determine the molar mass of acetaldehyde from...
acetaldehyde is a common liquid compound that vaporizes readily. Determine the molar mass of acetaldehyde from the following data: sample mass = 0.107 g volume of gas = 125 mL temperature = 0.0 C pressure = 331 mmHg [answer looks like: "# g/mol" with 3 SF]
A sample of 2.00 g of the non-volatile compound urea, CO(NH2)2 (molar mass = 60 g/mol),...
A sample of 2.00 g of the non-volatile compound urea, CO(NH2)2 (molar mass = 60 g/mol), is dissolved in 20.0 grams of water. What is the vapor pressure of water above this solution? The vapor pressure of pure water at the temperature of the experiment is 0.150 atm. a. 0.045 atm b. 0.010 atm c. 0.038 atm d. 0.146 atm e. 0.150 atm
1. A volatile organic liquid with known molecular weight is added to a vapor density flask which has a known volume. The...
1. A volatile organic liquid with known molecular weight is added to a vapor density flask which has a known volume. The flask is heated using a boiling water bath until all of the liquid has evaporated. After heating for an additional 1 or 2 minutes, the flask is removed from the boiling water bath, corked, and cooled using a room temperature water bath. Predict the mass of condensed vapor. Temperature of the hot water bath (ºC): 99.5 Volume of...
A volatile organic liquid with known molecular weight is added to a vapor density flask which has a known volume. The fl...
A volatile organic liquid with known molecular weight is added to a vapor density flask which has a known volume. The flask is heated using a boiling water bath until all of the liquid has evaporated. After heating for an additional 1 or 2 minutes, the flask is removed from the boiling water bath, corked, and cooled using a room temperature water bath. Predict the mass of condensed vapor. Temperature of the hot water bath (ºC): 99.4 Volume of the...
THE MOLAR MASS OF A VOLATILE LIQUID 1. A foil-covered flask was found to have a mass of 161.38 have a mass of 167.38 g. A volatile liquid was placed L00.0°C at a barometric pressure of 743.8 mm Hg. The foil-covered inside and heated to 100.0°C at a barometric press flask containing the vapor had a mass the molar mass of this volatile liquid. 's the vapor had a mass of 167.71 g and a volume of 147.0 mL. Calculate...
Molecular Mass of a Volatile Liquid 1. The atmospheric pressure of a hot summer day in NYC is 29.94 inHg. Calculate this value in mmile and am 2. The atmospheric pressure of a cold winter day in NYC is 25.94 inHg. Calculate this value in Pa. 3. We set up an experiment utilizing the Dumas method to calculate the molar mass of an unknown chemical. A 4.00 mL pure liquid sample of this chemical is vaporized in an Erlenmeyer flask...
Chame nsead tu age 06-17 Experiment 8: Molar Mass of a Volatile Liquid Purpose To determine the molar mass of a pure substance we need to find out (a) the number of moles in a given sample, and (b) the mass of the same sample. Molar mass is then: mass divided by moles Introduction Using the ideal gas equation, PV= nRT, we can determine the number of moles (n) of gas or vapor under measured conditions of pressure (P), volume...
Im not sure how to calculate the absolute percent error?
. Calculate the average molar volume. 24.45% mot 23 lunches =47.45 = 23.725 Ymo . Calculate the absolute % error for the average molar volume. Trial 1 Trial 2 Mass of Mg ribbon (g) 10.0541 9 10.07839 Barometric pressure (mmHg) 756 mitte 756mmalta (Proom) Temperature of the room (°C) (T2) Temperature of water inside beaker (°C) 121.060 mmHg 120.615 mm Hg. Pwater (mm Hg) Vapor pressure of water found in...
The pressure inside a sealed Erlenmeyer flask containing 5 mL of a volatile liquid was measured to be 345 mmHg at 326 K. Prior to introducing the volatile liquid, the pressure inside the Erlenmeyer flask was determined to be 156 mmHg at 295 K. What is the vapor pressure of the volatile liquid (in mmHg) at 326 K Your Answer: I Answer
How do you solve Part D.
Calculations (Moles of vapor, mass of vapor, and molar mass of
vapor)
3. a. The following data were recorded in determining the molar mass of a volatile liquid following the Experimental Procedure of this experiment. Complete the table for analysis. (See Report Sheet.) Record calculated values with the correct number of significant figures. Calculation Zone 74.722 Part D.1 98.7 74.921_ Part D.2 A. Preparing the Sample 1. Mass of dry flask, foil, and rubber...
Most questions answered within 3 hours.
-
(1 point) For a group of 80 people, assuming that each person is
equally likely to...
asked 16 minutes ago -
How
did you determine that the Margin of Error is 1? I got 1.435
asked 12 minutes ago -
Calculate the percent ionization of formic acid solutions having
the following concentrations? (This is all that...
asked 30 minutes ago -
Describe, with an example, communication between phases and
control module of a DCS.
asked 7 minutes ago -
A turtle ambles leisurely, as turtles tend to do, when it moves
from a location with...
asked 21 minutes ago -
1) What is the role of eye contact and shared reference in
establishing communication loops when...
asked 15 minutes ago -
QUESTION 7 Depreciation expense is a use of funds True False
QUESTION 8 A firm's operating...
asked 25 minutes ago -
13.
Artistic Adobes is considering growing its business by adding a
paint machine that costs
$100,000....
asked 17 minutes ago -
Do you think that the current economic system of the US is a
true capitalist system...
asked 23 minutes ago -
Aluminum, silicon, and oxygen form minerals known as
aluminosilicates. How many moles of aluminum are in:...
asked 32 minutes ago -
When Sr(CH3COO)2 (aq) + NiSO4
(aq) are mixed is there a reaction and if so what...
asked 42 minutes ago -
How many grams of solid ammonium chloride should be added to
1.50 L of a 0.279...
asked 43 minutes ago