CEM161_L09 - mama 0 © © © GD © © © 0 (D G) G) (D (D...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: mama 0 © © © GD © © © 0 (D G) G) (D (D (D CD CD ® 0 ® ® ® ® ® ® © G9 GB) © © (3) ® 0 (CD (D 0 GD GD GD GD GD GD GD ® © © © © © © © © Satisfactory completion of experiment 2/2 © © © © © © . Precisionl'of the three runs in Experiment1 2/2 @ ® ® ® ® ® ® ® ® Accuracy of results (Table 5) 3 /3 (5) . . Answers to questions (Table 6) 3/3 © © © © (SD 0 © © C5D. - I (0 ® : Total? /10 6?) Table 2. Readings O Mass of dry Erlenmeyer flask and stopper Mass filled with water Mass of water Average mass of water Volume of the Erlenmeyer flask Ambient temperature Atmospheric pressure Partial pressure of water Partial pressure of air Moles of air Mass of air Table 3. Experiment1 Readings Flask full of CO2 Flask emptied of CO2 Apparent mass of 002 - FAverage apparent mass ' (the average of the three runs) Actual mass of CO2 (add the mass of air displaced—see Step 5) |__ V H. : l The Molar Mass of Carbon Dioxide Gas Table 4. Experiment 2 Readings ‘ Mass of dry Erlenmeyer flask \35 _ 06 g ‘ Mass with CO2 when constant i 935.3 2 g » Apparent mass of CO2 . Z 6 9 \ Actual mass of 002 (Step 5) 0 S8 28 g 7 Table 5. Results W H _) £2 _) q male Molar mass of CO2 from Experiment 1 m g mol’1 -l Molar mass of CO2 from Experiment 2 m g mol’1 52.25 mol Density of air 56% .oolq g ml’1 'T Density of carbon dioxide gas MB 9 ml‘1 Ratio density CO2 / density of air ' W m [-652 // Expected ratio W [33! q Table 6. Answers to questions Question 1. When the stopper of the Erlenmeyer flask is loosened before weighing in Experiment 1, why doesn't the carbon dioxide escape? “the Caution made is more 0959.000 WWW“ WW“ Mm than 1M air and want (159‘ \/V Question 2. Why isn‘t the mass of air displaced by the water taken into account when the mass of water is determined? 8 doFHWT‘HQn lo“ dhvaqy fhcrej OnJ ’5 Li - '. , Wit Olonl halt 7’0 40/“? l; '“150 Wot/01‘. /, 3 Question 3. Calculate the mass of the flask‘filled with hydrogen gas. pig“ ,/ El mm J , mgoezosv) (2%) / AS , m M:/ ’ Z ' ‘ W H .OZIQS 44$ 0&5” ti P\l gamut» (-280'0 86 ...
View Full Document

This note was uploaded on 04/02/2012 for the course CEM 161 taught by Professor Amypollock during the Spring '08 term at Michigan State University.

Page1 / 2

CEM161_L09 - mama 0 © © © GD © © © 0 (D G) G) (D (D...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online