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

Explanation

(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.`