saltenhofen91 saltenhofen91
  • 04-05-2017
  • Chemistry
contestada

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

Respuesta :

JavierCollante
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

1. Who first spoke of the “iron curtain”? (1 point) • George Keenan • Winston Churchill • Joseph Stalin • Harry Truman 2. One goal of the Marshall Plan was
Who developed the polio vaccine?
what is 10×4 thousands in place vaule
if a < b and c < d is this valid? a/c < b/d
a temperature of 35f is equal to ____ kelvin.
30 POINTS 6. THE greater than negative number the _____ away it is on the number line. 7.zero is neither _____nor _____. 8. The smaller the negative number the
Given the equation Square root of 8x plus 1 = 5, solve for x and identify if it is an extraneous solution. A)x = One fourth, solution is not extraneous B)x =
two social issues that could lead to environmental injustice
write the equation of a line with a slope of –1 and a y-intercept of –6. y = –x – 6 y = –6x – 1
is "avoiding" an effective conflict management strategy?