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

PLEASE HELP QUICK I NEED THIS DONE FAST

if twice a number is increased by sixteen, the result is ten less than five times the same number what's the correct equation?!?

Evaluate 4. (106) - 5°

Finish these famous K-Pop inside jokes: Jimin,you got no ____. Hamburger and ______. I'm so ______,you're so ______,we're so ______! You know ___? Boy With ___

helppppp asap answer the question

30 POINTS AND BRAINLIEST!!! How did tyranny and the rule of law influence revolutionaries?

Bakit itinago ni Cupid ang tunay niyang pagkatao kay Psyche?

An organism lives in the darkest aquatic ecosystem, where light cannot reach. Which ecosystem is this organismmost likely in? A river A lake The open ocean A

Question 7 of 10 What was a major problem during the Harding administration? A. Deflation B. War C. Famine D. Government corruption

To get to school, kerry bikes 4/5 mile. her gym teacher bikes 4 times that distance. How far does 's kerry's gym teacher bike to school?