Saved Bookmarks
| 1. |
Which of the following correctly represents 360 g of water? i.2 moles of water.ii. 20 moles of wateriii. 6.022 x 1023 molecules of wateriv. 1.2044 x 1025 molecules of watera. i.b. i.and iv*c. ii and iiid. ii and iv |
|
Answer» ii and ivExplanation:) 2 moles of water: 1 mole of water= molecular WEIGHT of water= 18 G of WATER2 moles of water = 18×2=36 g of water.ii) 20 moles of water:1 mole of water= mol.wt of water= 18 g of water20 moles of water=18×20=360 g of wateriii) 6.02×10 23 molecules of water= mol.wt of water=18 g of wateriv) 6.02×10 23 molecules of water= mol.wt of water=18 g of water 1.2044×10 25 molecules of water= 6.02×10 23 1.2044×10 25 moles of water = 20 moles of water = 360 g of water.Therefore option D (ii and iv) is correc |
|