How many gram atom sodium is present in 115g sodium?
b) Calculate the mass of 5 gram atom calcium
(GAM Na-23g, Ca-40g)
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Answer:
i. No. of Gram Atoms = Given Mass/Atomic mass of that element in 1 mole
= 115/23
= 5
In the Given sample of 115 g Sodium, 5 g atoms are present.
ii. No. of Gram Atoms = Given Mass/Atomic mass of that element in 1 mole
= 5 = Given Mass/40
= 200 g = Given Mass
In the Given sample of 5 g atoms of Calcium, 200 g is present.
Hope this helps.
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