how 2 calculate no.of atoms in 52 moles of argon, 32 u of helium, 52 gm of helium. plz explain dis clearly.
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well for that purpose you should know atmoic weights of each.
helium has atomic wt. 4
so 1 mole of helium weighs 4g.
so to weigh 52 g, you need 13 moles.
13 moles is same as 13 × 10^23 atoms.
Here finishes your last and simplest qustion.
Now for second last question yoi should know the relation
1 g= 1.66 × 10^ -24 amu.
rest part is just of calculations.
comming to the first question, 1 mole of anything is same as 6.022×10^23 atoms.
So if you wanna calculate no. of atoms in 52 moles, just multiply it by 52.
Hope this helps.
Thanks!
helium has atomic wt. 4
so 1 mole of helium weighs 4g.
so to weigh 52 g, you need 13 moles.
13 moles is same as 13 × 10^23 atoms.
Here finishes your last and simplest qustion.
Now for second last question yoi should know the relation
1 g= 1.66 × 10^ -24 amu.
rest part is just of calculations.
comming to the first question, 1 mole of anything is same as 6.022×10^23 atoms.
So if you wanna calculate no. of atoms in 52 moles, just multiply it by 52.
Hope this helps.
Thanks!
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