Saved Bookmarks
| 1. |
A sample of `C_(x)O_(y)` having `3xx10^(19)` molecules is weighing `3.4 mg`. Then the value of x and y is respectively …………… `(Take N_(A) = 6xx10^(23))`A. `1,2`B. `3,2`C. `2,2`D. `5,2` |
|
Answer» Correct Answer - B A sample of `C_(x)O_(y)` having `3xx10^(18)` ………….. Mass of `N_(A)` molecules (Molar mass) `= (3.4xx10^(-3))/(3xx10^(19))xx6xx10^(23)` `= 68 g//mol` This is satisfied only for `x = 3 and y = 2` . |
|