3. Calculate the volume of the gas at STP using the combined gas law.PexpVexpPSTPVSTPTexpTSTP4. Using the volume of the gas at STP, calculate the number of moles of gas at STP.5. Using the equation: n=calculate the EXPERIMENTAL molar mass.Molar mass6. Using the formula for butane, C4H10, the ACTUAL molar mass of butane.7. Using the following equation to determine the percent error in the lab.#6#5ACTUAL MOLAR MASS – EXPERIMENTAL MOLAR MASS x 100%ACTUAL MOLAR MASS#6 Initial Mass of Lighter before experiment22.24gFinal Mass of Lighter after experiment22.01gMass of butane transferred to the0.23ggraduated cylinderVolume of butane in graduated cylinder100.0 mLAtmospheric Pressure755 mm HgTemperature of water and gas22°CKVapor Pressure of water at 22°C19.8 mm HgPressure of Dry gas0.23atmRecord all data in the Data TableCalculations: SHOW ALL WORK FOR ANY CALCULATION1. Calculate the mass of butane in the graduated cylinder.2. Calculate the pressure of the DRY gas at 22°CScreenshot(Alt + M)Patm = Phutane +P H20

Solution : The combined gas law is made by combining Charles’s law, Gay-Lussac’s law and…

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3. Calculate the volume of the gas at STP using the combined gas law. PexpVexp PSTPVSTP Texp TSTP

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

Kinetic-Theory of Gases

Kinetic theory of gases is the model or method which was developed in the 19th century by Maxwell and Boltzmann. This is possible as the interatomic force which is of short-range forces that are important for solids and liquids can be neglected for gases. This theory or gas law gives a molecular interpretation of the pressure and temperature of a gas and is consistent with gas laws and Avogadro’s hypothesis. This theory is very helpful to correctly explain the specific heat capacities of many gases, kinetic energy and it also explains the transport qualities such as viscosity, thermal conductivity, and diffusion with molecular parameters. As stated in the kinetic-molecular theory, the temperature of a substance or gas particle is related to the average kinetic energy of the particles of that substance. When a substance is heated, some of the absorbed energy is stored within the particles, while some of the energy increases the motion of the particles, called average kinetic energy.

Question

3. Calculate the volume of the gas at STP using the combined gas law.
PexpVexp
PSTPVSTP
Texp
TSTP
4. Using the volume of the gas at STP, calculate the number of moles of gas at STP.
5. Using the equation: n=
calculate the EXPERIMENTAL molar mass.
Molar mass
6. Using the formula for butane, C4H10, the ACTUAL molar mass of butane.
7. Using the following equation to determine the percent error in the lab.
#6
#5
ACTUAL MOLAR MASS – EXPERIMENTAL MOLAR MASS x 100%
ACTUAL MOLAR MASS
#6

Initial Mass of Lighter before experiment
22.24g
Final Mass of Lighter after experiment
22.01g
Mass of butane transferred to the
0.23g
graduated cylinder
Volume of butane in graduated cylinder
100.0 mL
Atmospheric Pressure
755 mm Hg
Temperature of water and gas
22°C
K
Vapor Pressure of water at 22°C
19.8 mm Hg
Pressure of Dry gas
0.23atm
Record all data in the Data Table
Calculations: SHOW ALL WORK FOR ANY CALCULATION
1. Calculate the mass of butane in the graduated cylinder.
2. Calculate the pressure of the DRY gas at 22°C
Screenshot(Alt + M)
Patm = Phutane +P H20

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