Solution to problem number 24677
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331. A weighing of technical sodium hydroxide weighing 0.3251 g was dissolved in a volumetric flask with a capacity of 100 ml. For titration of 25 cm3 solution with phenolphthalein, 18.40 cm3 of 0.1 M HCl was used, and with methyl orange - 18.80 cm3 of the same acid. Calculate the mass fraction (wt %) of sodium hydroxide in the sample.
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- Content type File
- Content description 21,92 kB
- Added to the site 10.02.2023
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If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.
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Solution to problem number 24677
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