50.一水溶液由50 mL,0.050 M之HCl與150 mL,0.10 M之HNO3所配製而成,下列有關此 溶液中各組成濃度的敘述,何者正確?
(A) [H+]=0.150 M
(B) [OH–]= 1.1✖ 10 -13 M
(C) [Cl–]= 0.050 M
(D) [NO3–]=0.10 M
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統計: A(115), B(519), C(86), D(39), E(0) #1724684
統計: A(115), B(519), C(86), D(39), E(0) #1724684
詳解 (共 4 筆)
#3096478
[H+]=0.05*0.05/0.2+0.1*0.15/0.2=0.0875
[OH-]=(10^-14)/0.0875=1.1*(10^-13)
[Cl-]=0.05*0.05/0.2=0.0125
[NO3-]=0.1*0.15/0.2=0.075
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#4398822
0.05*0.05/0.2+0.1*0.15/0.2怎麼乘都是0.0875阿
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#4456718
0打成.謝謝指教
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0