Warning: fopen(/var/www/storage/cache/cache.catalog.language.1766778895): 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 59Warning: imagewebp(/var/www/opencart/image/cache/catalog/products/3886812-1-reshenie-zadachi-po-himii-000-139-1-910x1155.webp): failed to open stream: No space left on device in /var/www/opencart/system/library/image.php on line 127Warning: imagewebp(/var/www/opencart/image/cache/catalog/products/3886812-1-reshenie-zadachi-po-himii-000-139-1-130x165.webp): failed to open stream: No space left on device in /var/www/opencart/system/library/image.php on line 127Warning: imagewebp(/var/www/opencart/image/cache/catalog/products/3886812-1-reshenie-zadachi-po-himii-000-139-1-406x516.webp): failed to open stream: No space left on device in /var/www/opencart/system/library/image.php on line 127Warning: fopen(/var/www/storage/cache/cache.catalog.language.1766778896): 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 591. Решение задачи по химии 000 139
4. Для анализа сточной воды на содержание железа (III) 20,0 мл пробы оттитровали 4,05 мл раствора ЭДТА концентрации 0,0505 моль/л. Вычислите массовую и молярную концентрации железа в сточной воде.
