. Arrange each group of compounds/ions in order of increasing pH. a) (4 pts) H 2

Question

. Arrange each group of compounds/ions in order of increasing pH.

a) (4 pts) H2SeO3                    H3PO4                         H2SO3                         H2SO4

b) (4 pts) PH2-                         HS-                             NH2-                            Cl-

c) (4 pts) HIO3                         HClO3                         HClO2                         HIO

d) (4 pts) K2CO3                     HBr                             CaBr2                          NH4Cl

e) (4 pts) NH3                          H3O+                           OH-                             HF

Explanation / Answer

a) (4 pts)      H2SO4 < H2SO3 < H2SeO3 <H3PO4                                  

b) (4 pts)    NH2- < PH2- < HS-   < Cl-

c) (4 pts)   HClO3 < HIO3   <HClO2     <HIO

d) (4 pts)                    HBr <     NH4Cl <    CaBr2    <    K2CO3    

e) (4 pts)                          H3O+   <HF < NH3 < OH-                           

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