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Which of the following could have a meso stereoisomer? a) 1,2-dichloropentane b) 1,3-dichloropentane c) 2,2-dichloropentane d) 2,4-dichloropentane
Determine freezing point of solution which contains .31 mol of sucrose in 175g H2O. kf=1.86 degreesC/m
A 1-L flask is filled with 1.20g of argon at 25C . A sample of ethane vapor is added to the same flask until the total pressure is 1.15 atm. A) What is the partial pressure of argon, P Ar , in the flask
Carbon tetrachloride, CCl4, is nonpolar. What forces hold the molecules together?
Find the volume of a gas inside a cylinder - What will be the resulting volume of this gas?
the heat formation of Al2O3(s) is delta H final is -1669 kj/mol. calculate the heat evolved when 0.267 g of Al burns in oxygen
A first order decomposition reaction has a rate constant of 0.0418yr-1. What is the half-life of the reaction in yr
the structure of HA for formic acid, and structure of the conjugate base for formic acid?
5.00 mL of water sample was titrated for hardness with 4.15mL of 0.0200M EDTA. write the equastion for the reaction and calcualte the hardness of the water in ppm
this energy is in the form ofelectromagnetic radiation, what is the frequency of the radiation? Is the radiation emitted orabsorbed?
There are three possible arrangements of atoms and nonbonding pairs of electrons for the AB3N2 geometry. assuming that the effects of the relative strengths of different type of electron repulsions given in the background information
whats the amount of heat required to raise the temperature of 165 g of water from 12.0 C to 88.0 C (sp. heat of H20(l)= 4.18 J/g)
burning 0.43g of the compound X (only contain C,H,O)in excess oxygen gives 1.10g of CO2 and 0.45g of H2O. what is the empirical formula?
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