Prop0332: Evaluation of the Gas Law Constant Here is a data sheet I need help fi

Question

Prop0332: Evaluation of the Gas Law Constant

Here is a data sheet I need help filling out. Some of the information is given, the blanks represent the answers needed. I need the work shown and the ACTUAL answer. Do NOT just show me how to work it and leave me hanging.

Mass Mg, g: 0.0214g, 0.0218g, 0.0210g, 0.0211g, 0.0209g

number of moles Mg _______, __________, _________, ___________, ________

Initial syringe volume, mL: 1.0 mL, 1.1 mL, 1.3 mL, 1.0 mL, 1.1 mL

Final syringe volume, mL: 23.5 mL, 23.4 mL, 23.2 mL, 23.4 mL, 23.5 mL

volume: ___________, ___________, ____________, ____________, ____________

Barometric pressure, torr: 730, 731, 735, 732, 730

Vapor pressure of water, torr: __________, ___________, ____________, _____________, ____________

Corrected pressure, atm: ____________, ____________, _____________, ____________, ____________

Temperature in Celsius: 22, 23, 22 , 23, 23

Temperature in Kelvin: __________, ____________, ____________, ___________, ___________

Find R: ____________, _____________, _____________, ______________, ____________

Compute the average value of R using all of your determiniations ___________

Explanation / Answer

A)

Mass Mg, g: 1) 0.0214g, 2) 0.0218g,3) 0.0210g,4) 0.0211g, 5) 0.0209g

no. of moles = mass/molar mass of Mg

number of moles Mg :

1) 0.0214/24.3 =0.0008806 mol ,

2)0.0218/24.3=0.0008971,

3) 0.0210/24.3=0.0008641,

4) 0.0211/24.3=0.0008683,

5) 0.0209/24.3=0.0008600

B)

Initial syringe volume, mL: 1.0 mL, 1.1 mL, 1.3 mL, 1.0 mL, 1.1 mL

Final syringe volume, mL: 23.5 mL, 23.4 mL, 23.2 mL, 23.4 mL, 23.5 mL

volume =Final syringe volume -initial volumesyringe

so,

Volume mL:

1) 23.5-1.0 = 22.5

2)23.4-1.1 = 22.3

3) 23.2-1.2 = 22.0

4) 23.4-1.0=22.4

5)23.5-1.1=22.4

c)

Barometric pressure, torr: 730, 731, 735, 732, 730

1 atm = 760 torr

pressure atm : 0.9605 , 0.9618 , 0.9671 , 0.9631 , 0.9605

D)

Temperature in Celsius: 22, 23, 22 , 23, 23

Temperature in kelvin: 22+273.15=295.15,

23+273.15=296.15,

22+273.15=295 ,

23+273.15=296.15,

23+273.15=296.15

R = PV/nT

1)

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