CHEM JA Fall 2017 Name KEY ID. mark \"D on scantron Points True or False (2 poin
ID: 695150 • Letter: C
Question
CHEM JA Fall 2017 Name KEY ID. mark "D on scantron Points True or False (2 points each) /100 London dispersion forces ane False 2. It is possible to havea Please use Expliain how the value of the constant R in the expression PRT is caultd to be 0821 Lat4 points af regions of electron desity d. Name the molecular gnometry point, equivalence point, and ( During either tration camied out ths semesten,e tinist KOH or KMnos would adding a small partion af water to your ample ad cid dihydrate ing VersionExplanation / Answer
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Answer of 1 question is TRUE because
London dispersion forces are the weakest forces it is a temporary attractive force that results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles.
Answer 2 TRUE because
It is possible to have non polar bonds in a polar molecule for example CH3Cl
In this c-cl bond in polar so the compound is polar but rest 3 c-h bonds are non polars
Answer 3
1 mole of an ideal gas at the standard temperature, 273 Kelvin and pressure, 1 atmosphere, will occupy a volume of 22.4 liters. Once you have all of that information you can solve for R mathematically starting from the ideal gas formula PV=nRT.
R=PV/nT or R=(1atm*22.4L)/(1mol*273K); R=0.0821(atm*L)/(mol*K)