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

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

Kendra bought a pieace of fabric that was 14 feet long .lisa bought a pieace of fabric that was 3 yards long .kendra wanted to cut her fabric so that it was the

English ships that land at jamestown in 1607. susan constant, discovery and

How did mountains affect the location of greek settlements?

Each decision maker wants to make a choice that ______ satisfaction

compare julius caesar and malcolm x

What is the quotient of 9.83 divided by 89.56

Select the best way to clarify or add an example to a sentence. A Use dashes. B Use commas to change the meaning of the sentence. C Rewrite the sentence. D Use

Why did parliament pass the tea act?

Despite all of our amazingly lucky shots, we still lost the basketball game in the end. Which answer identifies the adjective phrase and the word it modifies?

The stipulation required that accused person be told the have the right to remain silent from