jakkusj
jakkusj jakkusj
  • 26-05-2016
  • Chemistry
contestada

Calculate the number of molecules in 8.4 g of NaOH

Respuesta :

Willchemistry
Willchemistry Willchemistry
  • 26-05-2016
Molar mass NaOH = 40.0 g/mol

number of moles : 8.4 / 40.0 => 0.21 moles

1 mole ---------------- 6.02 x 10²³ molecules
0.21 moles ---------- ?

molecules :  ( 0.21 ) x  ( 6.02 x 10²³ ) / 1

= 1.264 x 10²³ molecules

hope this helps!
Answer Link

Otras preguntas

Solve the system of equations. x - 4y = 5 x = 3y - 2 ( , )
is 9/15 equal to 6/10
What is the square root of 1/16?
identify a two-digit dividend that will result in a quotient with a remainder of 1 when the divisor is 4.
Draw a example Of a diameter
As used in the passage, what does amplified most likely mean? A. increased B. airborne C. received D. electronic
how do you subtract 9 2/6 - 6 5/6
which Indian tribe did spain conquer in Peru
what goes into 33 and 55
Greg has a school debt of $9875. he wants to make biweekly payments and pay off the loan in four years. if the intrest rate is 6.3% compounded biweekly, how mu