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氢氧化钠pH值怎么算 氢氧化钠浓度 ph值

2021-04-26知识13

氢氧化钠浓度与ph值对照表(全) 原发布者:CHUANTY8888氢氧化钠浓度与ph值对照表氢氧化钠浓度%0.00000001%0.00000002%0.00000003%0.00000005%0.0000001%0.0000002%0.0000004%0.0000008%0.0000016%0.0000032%0.0000063%0.0000125%0.000025%0.000050%0.00010%0.010%0.010%0.020%0.030%0.050%0.10%0.20%0.040%0.05%0.10%0.20%0.30%0.40%0.50%0.60%0.70%0.80%0.90%1.00%1.10%1.20%1.30%1.40%氢氧化钠浓度mol/l0.000000.000000.000000.000000.000000.000000.000000.000000.000000.000000.000000.000000.000010.000010.000030.002500.002500.005000.007500.012500.025000.050000.010000.012500.025000.050000.075000.100000.125000.150000.175000.200000.225000.250000.275000.300000.325000.35000OHmol/l0.000000.000000.000000.000000.000000.000000.000000.000000.000000.000000.000000.000000.000010.000010.000030.002500.002500.005000.007500.012500.025000.050000.010000.012500.025000.050000.075000.100000.125000.150000.175000.200000.225000.250000.275000.300000.325000.35000lgOH-8.60206-8.30103-8.12494-7.90309-7.60206-7.30103-7-6.69897-6.39794-6.09691-5.80272-5.50515-5.20412-4.90309-4。.

Ph值为9的氢氧化钠溶液的浓度是多少? 要告诉温度,因为温度会影响水的电离常数,导致氢氧化钠浓度无法计算。如果是常温,则为10^-5

浓度1%的氢氧化钠溶液PH值是多少?浓度(质量浓度不是摩尔浓度)多少时PH值为14?请直接给出答案. 1、浓度1%的氢氧化钠溶液PH值:可以算出氢氧根离子的浓度是0.25mol/L(密度按水计算的,略小.).则PH=14-pOH=14+lg0.25=13.40.2、因为lg1=0.所以摩尔浓度为1mol/L的氢氧化钠溶液PH值为14.1mol是40g.质量浓度为:40/1000=4%.(密度按水计算,结果会略大一点点,4%浓度大约PH为14.02).

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