1) pH= a) log[H+] b) -log[H+] c) log[Ka] d) -log[Ka] 2) An acid is a) an electron donor b) an electron acceptor c) a proton donor d) a proton acceptor 3) The conjugate base of HSO4- is: a) H2SO4 b) SO4- c) (SO4)2- d) (HSO4)2- 4) The ionic product of water is: a) [H+][H+] b) [OH-][OH-] c) [H+][OH-] d) -log[H+] 5) A buffer solution is made from: a) a weak acid b) a weak acid + a strong acid c) a weak acid + its salt d) a strong acid + its salt 6) The buffer in blood is: a) carbonic acid / hydrogencarbonate b) sulfuric acid / hydrogensulfate c) ethanoic acid / ethanoate d) butanoic acid / butanoate 7) The pH in blood plasma is: a) 6.5-6.8 b) 7.0 c) 7.0-7.35 d) 7.35-7.45 8) A small value for Ka represents: a) a strong acid b) a weak acid c) a concentrated acid d) a dilute acid 9) Heat change for a reaction, Q= a) mcV b) m x deltaT c) mct d) mc x deltaT 10) A buffer solution minimises pH changes upon addition of: a) small amounts of acid b) small amounts of alkali c) small amounts of acid or alkali d) large amounts of acid or alkali

acids bases and buffers quiz

szerző: Névtelen
Nyomtatás...
Beágyazás

Ranglista

Vizuális stílus

Beállítások

Kapcsoló sablon

Automatikus mentés visszaállítása :?