Question

What is the mass, in kilograms, of an avogadro's number of people, if the average mass of a person is 160 lb?

Answer 1

Mass in kilogram = ?

Avogadro’s number = 6.022 x 10^23

Average mass of a person = 160 lb

First we convert mass into kilogram,

1 lb = 0.4536 kg

160 lb = 72.576 kg

Now multiply the Avogadro’s number people with the average mass in kilogram

6.022 x 10^23 x 72.576 = 4.37 x 10²⁵ kg

4.37 x 10²⁵ kg is the mass in kilogram of Avogadro's number of people.

Answer 2

Answer: Mass of an Avogadro's number of people is
`4.3695632 * 10^(25) kg`.

Step-by-step explanation:

Average mass of the person = 160 lb

Avogadro number =
`N_A=6.022* 10^(23)`

Mass of an Avogadro's number of people =
`6.022* 10^(23)* 160 lb=9.6352* 10^(25) lb`

1 lb = 0.4535 kg

`9.6352* 10^(25) lb=9.6352* 10^(25)* 0.4535 kg=4.3695632 * 10^(25) kg`

Mass of an Avogadro's number of people is
`4.3695632 * 10^(25) kg`.