How frequently does this natural hazard occur?

What is the molality of a solution that has 4 mol of kci in 0.800 kg of water

When svante arrhenius first proposed his acid-base theory, he was a doctoral candidate. his professors thought his ideas were unfounded. within a decade, the arrhenius theory of acid-base was widely accepted and praised within the scientific world. arrhenius defined acids as compounds having ionizable hydrogen and bases as compounds with ionizable a) barium. b) hydronium. c) hydroxide. d) oxygen.

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5