When 4.44 g of solid NH4NO3 dissolves in 50.0 g of water at 27.2°C in a calorimeter, the temperature decreases to 20.9°C. The value of q for this reaction is 1.43 kJ. Calculate the enthalpy of solution (ΔH for the dissolution) in kilojoules per mole of NH4NO3 under the given conditions. (Assume that the specific heat of the aqueous solution is the same as water, 4.180 J/g·°C, and not sensitive to temperature over the temperature range.)

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.