Chlorine is made up of 75.78% 35cl and 24.22% 37cl.
the atomic mass of 35cl is 34.969 amu . the atomic mass of 37cl is 36.966 amu .
what is the average atomic mass of a sample of chlorine?
34.969 amu
35.453 amu
35.968 amu
36.966 amu
35.453 amu is the correct answer

Gwhich r group would most likely be found in a hydrophobic area of the tertiary structure of a globular protein? which r group would most likely be found in a hydrophobic area of the tertiary structure of a globular protein? −ch2−oh −ch2−o||c−nh2 −ch2−coo− −ch2−ch2−ch2−ch2−n+h3

Chromosome 17 is made of over million base pairs.

)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.