Which of the following has the maximum mass (a) 20 g of phosphorus (b) 5 moles of water (c) 12 xx 10^(24) atoms of hydrogen ?

Which of the following has the maximum mass (a) 20 g of phosphorus (

1.	Which of the following has the maximum mass (a) 20 g of phosphorus (b) 5 moles of water (c) 12 xx 10^(24) atoms of hydrogen ?
Answer» Solution :(a) 20 gram of phosphorus = 20.0 G (b) 1 gram mole of WATER = 18.0 g 5 gram molesmoles water `= 18.0 xx 5 = 90.0 g` (C) `6.022 xx 10^(23)`atoms of hydrogen = 1.0 g `12.0 xx 10^(24)`atoms of hydrogen `= (12.0 xx10^(24))/(6.022xx10^(23))=19.93g` 5 moles of water have MAXIMUM mass = 90.0 g.