In this passage, the quotation is well-introduced. The author of the quotation is identified, as is the quotation's relation to the previous statement. From the introduction, the reader can detect the contrast between the quotation and the first sentence of the paragraph. Achieving Variety when Introducing Quotations.
(also cinnamic aldehyde, Î²-phenylacrolein), C 6 H 5 CH=CHCHO, a fatty-aromatic unsaturated aldehyde; a colorless liquid with the characteristic odor of cinnamon. It has a boiling point of 252Â°C and a density of 1.110 g/cm 3 (at 20Â°C). It is poorly soluble in water and very soluble in alcohol and ether. Cinnamaldehyde is a component of many essential oils (cinnamon oil and others).
Yes, ammonia is highly soluble in water. It is, in fact, more soluble than any other gas in water. 100 ml of water can dissolve as much as 31 gm of ammonia at 25 degree celsius. A solution of ammonia in water is called ammonium hydroxide, NH4OH. Ammonia's high solubility in water is due to hydrogen bonding with water molecules.