A.11:1 | B.9:1 | C.1:11 | D.1:9 |
x×0.1mol/L-y×0.01mol/L |
x+y |
A.100℃时,将pH=2的盐酸与pH=12的NaOH溶液等体积混合,溶液显中性 |
B.25℃时,某物质的溶液pH<7,则该物质一定是酸或强酸弱碱盐 |
C.25℃时,pH=4.5的番茄汁中c(H+)是pH=6.5的牛奶中c(H+)的100倍 |
D.100℃时某溶液中由水电离产生的c(H+)=1×10-11mol•L-1,则该溶液的pH可能是11或3 |
A.[NH4+]>[Cl-]>[H+]>[OH-] | B.[NH4+]>[Cl-]>[OH-]>[H+] |
C.[Cl-]>[NH4+]>[H+]>[OH-] | D.[Cl-]>[NH4+]>[OH-]>[H+] |
A.0.5mol•L-1100mL | B.0.5mol•L-1 80mL |
C.1mol•L-1 60mL | D.1mol•L-1 80mL |
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