Question

訪客

求解第四跟五題QQ

許

L Multiple
which ofthe following names and their formula:

(B) Hzso, sulfurous acid (C) Hcloa, perchlorie acid
) Which 9 the following factors,

(B) add NaoH _(c) aqd

staiwrong2 (A) Hzcos,suifure acid

(OD) HaPO4,  phosphoric acid

  
    
   
   
  
 
 
  
   
 
  

2. The ionization of water HzO 二 H Gaq + OH Gao)
&ontchange the degree of dissociation? (A) add HCI

“water_(D) heating
The dissociation constamt Kw

ents is correct?   (A) A80 Gi
OH=7, its ph<7

The qissociation of water is an endothermic reaction-
1.0x 1074at 25 寢.Which ofth e following statem'

raters pKw >14 (B) At65 C,   ifsome aqueous solution's P'
POH<7 (D) At Cle  1 solution's poOH+pH>14

of B solution. Supposed the W ot局

solution is 3 larger them tt
(B) 102(C a+10” (D)

hats the [HYT] of Asolution? (A)  103
洪
nol  rotic acid HA(M.W.=69) dissolves in50 gotwater,t

品 1.0 g/mL. if the freezing point ot this solutton
iven that be Kt 9 water is1.86 lm   『