43. Which of the following contains highest number of molecules ?
(1) 44 g of CO2
(2) 36 g of H2O
(3) 48 g of Os
(4) 32 g of SO4
Answers
Hi friend here is your answer
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No of moles = given mass / Molar mass
1) 44 / 44 = 1 mol
2) 36/18 = 2 mol
3) 48 / 190 = idk
4) 32/96 = idk
So second option
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Explanation:
In order to find the highest number of molecule you need to know the formula,
Answer:
That is,
No. of molecules = weight / molecular weight
Now let us see the options and check accordingly.
(1) 44g of CO2
No. of molecules = 44/44 = 1
(2) 36 g of H2O
No. of molecules = 36/18 = 2
(3) 48 g of SO
No. of molecules = 48/48 = 1
(4) 32 g of SO4
No. of molecules = 32/96 = 0.3
So by observing the results its clear that the highest number of molecules is in
36g of H2O