Also How many atoms are there in 3.00 moles of Na...please explain

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Also How many atoms are there in 3.00 moles of Na...please explain

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## Answers (1)

first You have to find the Molar mass of Sulfur Dioxide.

If you dont know how, here is how to find it

S=32.1

O=16*2 (because theres two of them)

add them together

= 64.1

then you take the amt in moles, 7.5 and times it by the molar mass (64.1)

so that equals 480.75grams, and you are done!!

Okay next problem.......

to go from moles to atoms, you have to multiply the number of atoms by 6.022*10^23

these ones are easy.

3 times 6.022*10^23

which equals 1.81*10^24

***if you use a graphing calculator, make sure you put () around 6.022*10^23 or you won't get the right answer and don't write your answer w/ the little "E"

Okay hope I helped..........

just remember

grams to moles divide by Molar Mass

Moles to atoms multiply by 6.022.......

atoms to moles divide by 6.022........

moles to grams Multiply by Molar Mass