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Find the mass of 2.5 mole of oxygen atom...

Find the mass of 2.5 mole of oxygen atoms.

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`"Mass"="Atomic mass"xx"number of moles"`
`"Mass of oxygen"=16xx2.5=40g`
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  9. Calculate the mass of 18.069xx10^(23) molecules of SO(2)

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  14. Calculate the number of moles in 24.092xx10^(22) molecules of water.

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  15. Which one of the following will have largest number of atoms? (i) 1g...

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  16. Calculate the number of atoms in each of the following: (i) 52 moles...

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  17. Calculate the number of moles in each of the following. (i) 392 g of...

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  18. The density of water at room temperature is 1.0 g/mL. How many molecul...

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  19. Calculate the total number of electrons present in 1.6 g of methane.

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  20. The Vapour Density of a gaseous element is 5 times that of oxygen unde...

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