University:
Mississippi College
Course:
CHE 141 | General Chemistry I
Academic year:

2022
Views:

325

Pages:

3
Author:

Abby D.

Ch. 6 Gas Laws P+2Charles Law: Shows the relationship between VBT(while holding P&nconstant!)P=FVOCT V= constant(T)A1TTVITTice fireIT VI=coron==2(before (Afterthe the" "directly proportional"T,T2change) change)V1-V2T1T2V1-(L)(T2Question: A 1.55mL sample of O2 gas is cooled from 95.3°C to 0.00°Cwhat is its final volume?273.15273.15V2 -In Kelvin368.45 K 273.15V1 V212=T2T2.V,= = V2(273,15 k)(1.55mL)4SF=TIT2T1(368.45k)= 1.15mLcharles LawAvogadros LawIVVI0TEK)npCharles LawAvogadros Law: shows the relationship between VGn (mois)VanVi = V2n,n2TNTVnnQuestion: A balloon contains 0.158 molt of gas and has a volumeof 2.46L If an VV5. additional 0,113 mol of gas is added what willits new volume be?V2=n3V, (0.271m01)(2.46L)+0.113 moi12 V1 n,V20.271 moln,0.158mp2n2=4.22L Ch.6 Pt2 cont."Ideal Gas Law": obeyed by "ideal gases"(as opposed to"real gases")PV=nRTIdealgos constantused to determine a property of a gaswhen the Other 3 are known.0.08206 L-atmmalkP?VQuestion:whatisthepressureofaCO2gassamplea3.5illcontainer that has a mass of 4.8ng@ a temp. of 298K.PV=nRTTV V4.8ng,1g1molP=nRT =10°ng44.01gV3.5ul IL(1.091x10"mol) x (0.08206) K.atm298Kmak7.6 x 10-4 atm3.5x10-6"STP"-Standard temp + pressure0°Ciatmorefa273.15kmolar Volume: volume (inL) of / molagas.?what is themolar volume of a gas @ STP?RV=nRT@STP62.224L2244R P1mol He 1mol NH3 1mot 02V=nRT P- 22.4LatmQSTP,gaswhat is the Volume of 1.45kg of He @STP?(224L) mol1.45kg1gInaolx4,003g,(2244)=8,11x103L1000 kgimoiLA Ch. 6 cont.Density of a gas (@ STP)D=mmoler mass (mo)Vmolar volume? Calculate the densityD= 32.00g = 1.43g/Lof O2 gas eSTP?22.4L(oxygen)