The smallest unit of charge is -1.6 * 10^-19 C, which is the charge (in coulombs) of a single electron.

Robert Millikan was able to measure the charge on small droplets of oil by suspending them between a pair of electrically charged plates. Which of the following are possible charges of those oil droplets?

A. - 1.2 * 10^-19 C
B. - 3.2 * 10^-19 C
C. - 4.8 * 10^-19 C
D. - 5.6 * 10^-19 C
E. - 8.0 * 10^-19 C
F. - 9.4 * 10^-19 C

https://www.wolframalpha.com/

Explanation:

120,630,890

step-by-step explanation:

110+10=120,620+10=630,880+10=890

answer : (a) volume of the gas = 8.67 ×   l

                (b) second virial coefficient b = -1.21226 l/mole

solution :   given,     t = 300k

                                p = 20atm

                                z = 0.86

                                n = 8.2 mmoles = 8.2 × moles

                                r =   0.082 l atm/k/mol

        find,     (a) volume of gas   and (b) second virial coefficient b at 300k.

formula used :            

                          and            

(a)            

                    = \times 0.082\times 300}{20}[/tex]

                    = 8.67 ×   l

(b)      

                    = (0.00867-1) × 8.659

                    = - 8.5839 l/mole