19-09-2016
Chemistry

contestada

What is the mass in grams of 6.12 x 10^20 molecules of caffeine, C8H10N4O2?

Respuesta :

19-09-2016

[tex]6,02*10^{23} \ \ \ \ \ \ \rightarrow \ \ \ \ \ 194,2g\\ 6,12 * 10^{20} \ \ \ \ \ \ \rightarrow \ \ \ \ \ x\\\\ x=\frac{6,12*10^{20}*194,2g}{6,02*10^{23}}\approx197*10^{-3}g=0,197g[/tex]

Answer Link

Otras preguntas

What did the Arab invaders of the Sind and the Turkish invaders of Khurasan have in common?

See the attachment below. Remember, I will report any incorrect answers.

If 2x + 2x + 2x = 12 then what is the value of x in 2x - 1 = 3?

You can tell whether people are nearsighted or farsighted by looking at the size of their eyes through their glasses. when a person's eyes seem magnified, is th

Which American foreign policy does this quotation from 1823 describe

George makes a $1000 down payment for a car and then pays $325 per month. Elaine makes a $2500 down payment for a car and then pays $325 per month. Is there any

2 |3x-1| +2=10 help!

what was the relationship of renaissance music with religion? how has this changed from renaissance to today?

How can child-care centers and homes encourage children from literacy-poor environments?

The difference between the two roots of the equation 3x2+10x+c=0 is 4 2/3 . Find the solutions for the equation.