A.pH=3的硝酸跟pH=11的氢氧化钾溶液 |
B.pH=3的盐酸跟pH=11的氨水 |
C.pH=3的硫酸跟pH=11的氢氧化钠溶液 |
D.pH=3的醋酸跟pH=11的氢氧化钡溶液 |
A.10(a+b-12)% | B.10(a+b-14)% | C.10(12-a-b)% | D.10(14-a-b)% |
A.2.0 | B.12.3 | C.1.7 | D.12.0 |
A.9:1 | B.10:1 | C.1l:1 | D.12:l |
A.1% | B.2% | C.5% | D.10% |
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