Dissolving 3.0 g of CaCl2(s) in 150.0 g of water in a calorimeter at 22.4 o C causes the temperature to rise to 25.8 o C. What i
s the approximate amount of heat involved in the dissolution, assuming the specific heat of the resulting solution is 4.18 J/g o C? Is the reaction exothermic or endothermic?
BillBill's recipe for onion soup calls for 4.0 lb of thinly sliced onions . if an onion has an average mass of 115 g , how many onions does Bill need ?
