Saved Bookmarks
| 1. |
Number of molecules in 1 L of water is close toA. `18/(22.4 )xx10^(23)`B. `55.5 xx 6 . 023 xx10^(23)`C. `(6.023)/23.4 xx 10^(23)`D. `18xx 6. 023 xx 10^(23)` |
|
Answer» Correct Answer - B 1 mole of water means 18 g of water which means `6.023xx 10^(23)` molecules. 1 L of water means = 1000 g 1000 g of water `= 1000/18 ` mol As 1mol of water `= 6. 02 xx10^(23)` molecules `therefore 1000/18` mol of water ` = 1000/18 xx 6.023xx 10^(23)` ` = 55.5 xx 6.023 xx 10^(23)` |
|