1.

How many grams are there in : (i) 5 moles of water (ii) 2 moles of Ammonia (iii) 2 moles of Glucose

Answer»

Solution :(i) 5 moles of water
`"Mass of 1 mole of water "(H_(2)O)=18G(2+16)`
`therefore"Mass of 5 moles of "H_(2)O=18xx5=90g`.
(II) 2 moles of ammonia.
Mass of 1 mole of ammonia `(NH_(3))=17G (14+3)`
`therefore"Mass of 2 moles of ammonia "=17xx2=34g`.
(iii) 2 moles of glucose.
`"Mass of 1 mole of glucose "(C_(6)H_(12)O_(6))=180g (72+12+96)`
`therefore"Mass of 2 moles of glucose "=180xx2=360g.`


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