budhaithrive
budhaithrive budhaithrive
  • 04-08-2016
  • Chemistry
contestada

How many moles of sodium (Na) do you have in a sample of 9.8 × 10^23 atoms Na?

0.61 mol Na

1.6 mol Na

5.9 mol Na

16.3 mol Na

Respuesta :

Willchemistry
Willchemistry Willchemistry
  • 08-08-2016
1 mol ----------- 6.02 x 10²³ atoms Na
( mols Na) ------ 9.8 x 10²³ atoms Na

( mols Na ) = ( 9.8 x 10²³ ) x 1 / 6.02 x 10²³

( mols Na) = 9.8 x 10²³ / 6.02 x 10²³

= 1.6 mols Na

hope this helps!
Answer Link

Otras preguntas

let us summarize what has been learned in this lesson.choose the number of sentences that are true to your current situation. Write your answer on your answer
Which expression is not equivalent to 9 1/2?
help lol---------------------------
Which Georgia senator fought for farmer's rights in Congress? Group of answer choices Henry Grady Tom Watson Richard B. Russell Alexander Stephens
Plzzzzzz hellppp wahtttt
Solve the system using elimination. Explain 16x - 7y = 4 x-7y=-26
When considering a career as an art director, which aspects of the job might be most challenging to a trained artist? (Select all that apply.)
list all structures of an animal cell
pls solve this fast now
What is the sum of 3+(−4) = -1