A.pH=10与pH=12的NaOH溶液等体积混和,溶液pH=11 |
B.pH=5的盐酸溶液稀释1000倍,溶液的pH等于8 |
C.pH=2的 H2SO4与pH=12的NaOH溶液等体积混和,溶液pH=7 |
D.pH=12的NH3·H2O与pH=2的HCl溶液等体积混和,混和液pH=7 |
A.该温度下,0.0l mol/L醋酸溶液的pH=4 |
B.该温度下,用0.1 mol/L醋酸和0.01 mol/L醋酸分别完全中和等体积0.1 mol/L的NaOH溶液,消耗两醋酸的体积比为1∶10 |
C.该温度下,0.2 mol/L醋酸溶液和0.4 mol/L醋酸钠溶液等体积混合后,混合液的pH<4.7 |
D.该温度下,0.2 mol/L醋酸溶液和0.4 mol/L醋酸钠溶液等体积混合后,混合液的pH=4.7 |
A.0.1mol pH=12 | B.0.02mol pH=2.7 |
C.0.15mol pH=1 | D.0.3mol pH=10.7 |
A.1∶10∶100∶1000 | B.0∶1∶12∶11 |
C.14∶13∶12∶11 | D.14∶13∶2∶3 |
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