. You were asked to relate experimental measurements—specifically the moles of AgClcap A g cap C l
(to get 3H2 on left). [ 3H2 + 1.5O2 → 3H2O \quad ΔH = -857.4 , \textkJ ] 1972 ap chemistry free response answers
The original 1972 AP Chemistry exam is copyrighted by the College Board. The following answers are provided for educational commentary and historical analysis based on declassified materials and retroactive scoring guidelines. They are not official College Board publications but are accurate to the chemistry of the era. Adding Acid ( H+cap H raised to the
) buffer solution resists pH changes when strong acids or bases are added [2, 6]. Adding Acid ( H+cap H raised to the positive power ): The weak base ( NH3cap N cap H sub 3 ) reacts with it: 1972 ap chemistry free response answers
Remember: The chemistry hasn’t changed—only the tools have. Mastering the will make you a faster, sharper, and more confident chemist on today’s exam.