saltenhofen91 saltenhofen91

04-05-2017
Chemistry

contestada

how many moles of Cu in 7.81 * 10^21 atoms of Cu

Respuesta :

JavierCollante JavierCollante

04-05-2017

Use avogadro's number---> 6.02 x 10^23 atoms= 1 mol

7.81 x 10^21 (1 mole/ 6.02 x 10^23)= 0.0130 moles of Cu

Answer Link

Otras preguntas

A mixture of water and graphite is heated to 600 k in a 1 l container. when the system comes to equilibrium it contains 0.15 mol of h2, 0.15 mol of co, 0.57 mol

2) Which climate would NOT be found in Africa? A) arid B) subtropical C) tropical D) tundra

Based on the excerpt from mencken's account of events, predict how you think the mostly traditionalist jury would decide the case against scopes

When do you have to rely on physical traits instead of DNA?

what battle strategy used in world war 1 allowed little ground to be gained

Usando a notação de conjuntos escreva os intervalos . [6,10]

How is littering is affecting the world?

A Venn diagram is shown below: a venn diagram showing two categories, A and B. In the A only circle is 1 and 2, in the B circle is 5 and 6, in the intersection

DNA strands are held together by ____and separated by_____when dna copies itself

The length of a garden is 125% of its width. If the width of the garden is 8 meters, what is the area of the garden?