ItsMoonLight9766 ItsMoonLight9766

23-10-2017
Chemistry

contestada

Calculate the mass of 1.23×1024 helium atoms.

Respuesta :

meerkat18 meerkat18

02-11-2017

6.023*1023 He atoms=1 mole He

1.23×1024 helium atoms=1.23×1024/6.023*1023 =2.042 mole He

one mole He=4.0 gm

2.042 mole He=2.042*4.0=8.168 gm

answer in grams of Helium is 8.168 gm

Answer Link

Otras preguntas

Characteristics considered typical of a “difficult” child vary from one culture to another. For example, Nanta of the Masai tribe would consider a quiet and shy

Help me please...............

The slope of the line below is 2 use the coordinates of the labeled point to find a point slope equation of the line

There are 8 brooms and 6 mops in a janitor's closet. What is the ratio of the number of mops to the number of brooms?

The smallest structural unit that exhibits the characteristics of living things is

what is the least common multiple of 17 and 9?

How many solutions does the following equation have? -6(x + 7) = -4.x - 2

the number of lattes sold daily for two coffee shops is shown in the table: Lattes 12 52 57 33 51 15 46 45 Based on the data, what is the difference between

What is the mode for the set of data shown below? 34, 75, 26, 81, 65, 38, 49, 73, 58, 12, 31, 25, 75, 86, 47, 99

What is an example of public service?