Saved Bookmarks
| 1. |
A 0.2 g sample of an acid gave 0.50 g CO, and 0.089 gHO. If the molecular weight of the acid is 244 g, whatis the molecular formula of the acid? |
|
Answer» Explanation: On complete combustion, 0.246 g of an organic compound gave 0.198 g 0f CO2 and 0.1014 g of H2O. What is the ratio of carbon and hydrogen ATOMS in the compound?  Prajith Greninja Answered Oct 2, 2017 Given: mass of organic compound --- 0.246 g mass of CO2 formed ----- 0.198 g percentage of Carbon = 12 x mass of CO2 formed x 100 44 mass of organic compound percentage of carbon = 12 /44 x 0.198/0.246 x 100 percentage of carbon = 2.376/10.824 x 100 % carbon = 0.2195 x 100 %carbon = 21.95 ---------------------------------------------------------- 21.95% of carbon is present in the compound Percentage of hydrogen =2/18× mass of H2O/mass of compound×100 = 2×0.1014×100/18×0.246 = 4.58 Hence,the composition of compounds are CARBON : 21.95% HYDROGEN : 4.58%. All the best if U GUYS GET more doubts ask me i will help u out of it. Your friend, CHAOTIC SAMI |
|