Potassium hydroxide (KOH) has a lattice energy of – 789.0 kJ/mol and a heat of hydration of -846.6 kJ/mol. What volume of solution could be heated from 25.0°C to 100.0 °C by the heat evolved from the dissolution of 25.7 g of KOH? Assume the
solution has a specific heat capacity of 4.00 and a density of 1.05 g/mL.

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j

Which rate indicates the number of children that would be born per woman if she were to live to the end of her child bearing years