1.

What mass in grams is represented by (a) 0.40 mol of CO_(2) , (b) 3.00 mol of NH_(3) , (c) 5.14mol H_(5)IO_(6) ? (C = 12 , O = 16 , N = 14 , H = 1 and I = 127)

Answer»

Solution :Mass in grams = number of MOLES `XX` molecular mass.
Hence ,
(a) mass of `CO_(2) = 0.40 xx 44 = 17.6` G
(b) mass of `NH_(3) = 3.00 xx 17 = 51.0 `g
(c) mass of `H_(5) IO_(6) = 5.14 xx 228 = 1171. 92 g`


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