1. When potassium permanganate reacts with hydrochloric acid, chlorine is formed, which can completely displace bromine from potassium bromide contained in 250 g of KBr solution with a mass fraction ω(KBr) = 14.8%. Determine the mass of potassium permanganate that has reacted.

If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.