The Phosphoric Acid Salt of Caffeine Has the Structure $\mathrm { H } _ { 3 }$

question 63

Multiple Choice

The phosphoric acid salt of caffeine has the structure: This molecule behaves as an acid in that it can donate a hydrogen ion,created from the hydrogen atom bonded to the positively charged nitrogen atom.What salt is formed when 1 mole of this salt reacts with 1 mole of sodium hydroxide,NaOH,a strong base?

• A)Salts can't react to form salts,rather they only arise from the reaction of an acid and a base.
• B) \(\mathrm { H } _ { 3 }\) \(\mathrm { O } ^ { + }\) \(\mathrm { H } _ { 2 }\) P \(\mathrm { O } _ { 4 }\) ^-
• C) \(\mathrm { Na } ^ { 2 + }\) HP \(\mathrm { O } _ { 4 }\) \(\text { 2- }\)
• D) \(\mathrm { Na } ^ { + }\) \[\mathrm { H } _ { 2 }\] P \[\mathrm { O } _ { 4 }\] \(-\)

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