If the pH of a wine is too high, say, 4.0 or above, the wine becomes unstable and has a flat taste. (a) A certain California red wine has a pH of 3.4, and a certain Italian white wine has a pH of 2.5. Find the corresponding hydrogen ion concentrations of the two wines. (Enter your answers to five decimal places.) California red 0.0004 Correct: Your answer is correct. M Italian white Incorrect: Your answer is incorrect. M

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.