40%-й раствор (ρ=1,25 г/мл) имеет нормальность 5 N. Определите растворённое вещество.

  1. Fe₂(SO₄)₃
  2. Fe(NO₃)₃
  3. NaOH
  4. CaBr₂

📝 Detailed explanation

N = ω·ρ·1000/Mэкв ⇒ Mэкв = 0,4·1250/5 = 100. У CaBr₂: M=200, эквивалент=2 ⇒ Mэкв=100. Подходит.
5 / 30 (17%)
Question 5 of 30
← Previous → Next Space — Show answer

🎯 Take a test on the topic «Химия»

This topic contains 30 questions. Test your knowledge!

🔐 Log in to take the test

📚 All tests by subject «Биология»

View all collections and topics in Биология

Go to subject →

Report an error

Answers are unavailable

This test collection is closed. To get full access, please purchase 🌟 premium

Contact by email