The ratio of Carbon-12 to Carbon-14 today and in the past is 9: 1. You unearth the remains of a long dead creature and discover how much Carbon-12 and Carbon-14 it currently has. Describe how this ratio, the amount of Carbon-12 today, and the amount of Carbon-14 today are used to determine the absolute age of this creature. Use words, either spoken or written, to convey most of your meaning. You may use additional visuals to make your answer more clear.​

In pqr m< p=60 m< q= 30 and m

Correct relationship between molecular formula and empirical formula

)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.