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140. Solving a chemistry problem
Uploaded:
17.05.2022
Content: 86.rar 43,92 kB
Content: 86.rar 43,92 kB
Product description
IV. To determine the HF concentration, the dependence of the specific electrical conductivity χ on the acid content in the solution is used - Table 25.
Table 25
CHF,
mol / L 0.004 0.007 0.015 0.030 0.060 0.121 0.243
χ • 104,
Cm / cm 2.5 3.8 5.0 8.0 12.3 21.0 36.3
Plot this data a graph in coordinates log χ - log CHF and use it to determine the concentration of hydrofluoric acid, if its specific electrical conductivity is - Table 26 (in accordance with the problem number).
Table 26
Problem number χ • 104, S / cm
86 3.2
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