When 10.0 g of potassium hydroxide (KOH) is dissolved in 100.0 g of water, the temperature rises from 25.18 °C to 47.53 °C. What is the heat of solution of KOH in units of joules/gram? The total mass of the solution is 110.0 g (100.0 g H2O + 10.0 g KOH = 110.0 g) and its specific heat capacity is 4.18 J/(g·K).

The two naturally occurring isotopes of chlorine are 35cl (34.969 amu, 75.77%) and 37cl (36.966 amu, 24.23%). the two naturally occurring isotopes of bromine are 79br (78.918 rm amu, 50.69%) and 81br (80.916 amu, 49.31%). chlorine and bromine combine to form bromine monochloride, brcl. 1. how many peaks will be present in a mass spectrum for brcl? the four combinations of molecule possible given these four isotopes are: 81br37cl, 81br35cl, 79br37cl, and 79br35cl. 2. what are the masses of the four different brcl molecules? express the masses using six significant figures, in decreasing numeric order (highest to lowest), separated by commas.