Hey there! We receieved your request
Stay Tuned as we are going to contact you within 1 Hour
One of our academic counsellors will contact you within 1 working day.
Click to Chat
1800-5470-145
+91 7353221155
Use Coupon: CART20 and get 20% off on all online Study Material
Complete Your Registration (Step 2 of 2 )
Sit and relax as our customer representative will contact you within 1 business day
OTP to be sent to Change
Molecular Formula of Gaseous Hydrocarbons
The molecular formula of gaseous hydrocarbons can be determined even without knowing their percentage composition. A known volume of hydrocarbon is taken in eudiometer tube and exploded with an excess of known volume of oxygen. The carbon and hydrogen of the hydrocarbon are oxidized to carbon dioxide and water respectively according to the following general reaction.
After explosion, the tube is allowed to cool to room temperature. The volume of the gaseous mixture is recorded. The volume corresponds to unreacted oxygen and carbon dioxide. The volume of carbon dioxide is determined by the decrease in volume of the gaseous mixture when caustic potash solution is introduced into the eudiometer tube. The caustic potash solution absorbs whole of carbon dioxide. The gas left behind is the unreacted oxygen. Volume of oxygen used is then calculated by subtracting the volume of unreacted oxygen from the total volume of the oxygen taken initially.
The molecular formula of the hydrocarbon can be evaluated by knowing
i) the volume of gaseous hydrocarbon taken
ii) the volume of oxygen used, and
iii) the volume of carbon dioxide produced.
Get your questions answered by the expert for free
You will get reply from our expert in sometime.
We will notify you when Our expert answers your question. To View your Question
Win Gift vouchers upto Rs 500/-
Register Yourself for a FREE Demo Class by Top IITians & Medical Experts Today !