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in /var/www/opencart/system/library/image.php on line 127Warning: fopen(/var/www/storage/cache/cache.catalog.language.1766732173): failed to open stream: No space left on device in /var/www/opencart/system/library/cache/file.php on line 49Warning: flock() expects parameter 1 to be resource, bool given in /var/www/opencart/system/library/cache/file.php on line 51Warning: fwrite() expects parameter 1 to be resource, bool given in /var/www/opencart/system/library/cache/file.php on line 53Warning: fflush() expects parameter 1 to be resource, bool given in /var/www/opencart/system/library/cache/file.php on line 55Warning: flock() expects parameter 1 to be resource, bool given in /var/www/opencart/system/library/cache/file.php on line 57Warning: fclose() expects parameter 1 to be resource, bool given in /var/www/opencart/system/library/cache/file.php on line 59Васильев Глава 6 Задача 24
24. Какой объем раствора NaB(C6H5)4 с массовой долей 3% (ρ=1 г/см3) потребуется для осаждения тетрафенилборатов калия и аммония из раствора, содержащего 0,1 г K2SO4 и 0,05 г (NH4)2SO4, при стехиометрическом соотношении реагирующих веществ?
