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Sunshine447
 2 years ago
How many moles of tungsten atoms are in 4.8*10^25 atoms of tungsten?
a. 800 moles
b. 80 moles
c. 0.13 moles
d. 0.013 moles
Sunshine447
 2 years ago
How many moles of tungsten atoms are in 4.8*10^25 atoms of tungsten? a. 800 moles b. 80 moles c. 0.13 moles d. 0.013 moles

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ghazi
 2 years ago
Best ResponseYou've already chosen the best response.3number of moles \[n=\frac{ w }{ m }\] but here you have been given atoms and one mole =6.022 *10^23 atoms there fore number of moles are \[n=\frac{ 4.8*10^{25} }{ 6.022*10^{23} }=79.707 \]

ghazi
 2 years ago
Best ResponseYou've already chosen the best response.3@Sunshine447 hope that helps you

Sunshine447
 2 years ago
Best ResponseYou've already chosen the best response.1@ghazi but how did you get 79.707?

ghazi
 2 years ago
Best ResponseYou've already chosen the best response.3i think i made a mistake, its 7.9707 moles

ghazi
 2 years ago
Best ResponseYou've already chosen the best response.3just a division of the numbers i have written above

Sunshine447
 2 years ago
Best ResponseYou've already chosen the best response.1my teacher said to round up, so i think 79.707 was correct....

ghazi
 2 years ago
Best ResponseYou've already chosen the best response.3one mole has 6.02*10^23 atoms 1 atom is there in 1/6.02 *10^23 moles therefore 4.8 *10^25 will be in 4.8*10^25/6.02*10^25 and answer is B

ghazi
 2 years ago
Best ResponseYou've already chosen the best response.3is that clear now? @Sunshine447 :D
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