Chemistry, 18.11.2019 22:31 laqu33n021
When 0.876 g of cacl2 (110.98 g/mol) is added to 95.0 g of water at 22.4 °c in a ‘coffeecup’ calorimeter, the temperature of the resulting solution increases to 29.7 °c. the specific heat capacity of the solution is 4.184 j/°c·g and the heat capacity of the styrofoam cup is negligible. a) is this reaction endothermic or exothermic? how do you know? b) calculate the molar heat of solution (∆hrxn) of cacl2 in water
Answers: 3
Chemistry, 22.06.2019 14:50, ladybugperez05
Which of the following is most likely true about water in chemical systems? a) water dissolves nonpolar ionic compounds. b) water dissociates ionic compounds. c) water dissociates covalent molecules. d) water dissolves nonpolar covalent substances.
Answers: 1
Chemistry, 22.06.2019 19:30, Adrian12313
Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.
Answers: 1
When 0.876 g of cacl2 (110.98 g/mol) is added to 95.0 g of water at 22.4 °c in a ‘coffeecup’ calorim...
Mathematics, 29.03.2021 18:00