Answer:
c2h6
Explanation:
molecular weight=vapour density*2=2*15=30
molecular formula=empirical formula*n
n=molecular weight/empirical formula weight=30/15=2
so molecular formula2 * (ch3) alkane =c2h6
A. It’s known as the “universal solvent”
Answer:
Long term exposure to polluted air results in significant health issues like asthma, lung cancer and Chronic Obstructive Pulmonary Disease (COPD). Breathing air pollution hampers the functioning of lungs among healthy people resulting in respiratory inflammation and heart problems
Answer:
The melting and boiling points of molecular compounds are generally quite low compared to those of ionic compounds. This is because the energy required to disrupt the intermolecular forces between molecules is far less than the energy required to break the ionic bonds in a crystalline ionic compound
Answer:
The smell of a chocolate is from the presence of volatile compounds present in the chocolate bar which at room temperature readily changes phase from solid to liquid to vapor or gas
Explanation:
There are nearly 600 identified compounds present in a chocolate bar and out of these, there are volatile components which gives the chocolate bar its distinctive aroma.
These volatile chocolate contents readily change phase from solid to vapor, with very short duration liquid phase.
For example, 3 methylbutanal, vanillin, and several organic compounds which are known to be readily volatile.