140. Solving a chemistry problem
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105. The analyzed solution of methylamine CH3NH2 with a volume of 20.00 ml was diluted in a volumetric flask to 100.0 ml, then 10.00 ml of the resulting solution was titrated potentiometrically with 0.1000 N HCl solution. Determine the concentration (mol / L) of the starting methylamine solution according to the following data - table 41.
Table 41
V, ml
(HCl) 12.0 15.0 17.0 17.5 17.8 18.0 18.2 18.5 19.0
pH 10.36 9.96 9.43 9.17 8.28 5.99 3.28 2.89 2.58
Table 41
V, ml
(HCl) 12.0 15.0 17.0 17.5 17.8 18.0 18.2 18.5 19.0
pH 10.36 9.96 9.43 9.17 8.28 5.99 3.28 2.89 2.58
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- Content description 38,54 kB
- Added to the site 16.05.2022
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140. Solving a chemistry problem
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