What mass (in grams) of CaCl2(s) must be dissolved in pure water at 10.0 deg Celsius to make a 27.0 mL solution and to increase the solution temperature to 16.2 deg Celsius? Assume that there is no heat loss from the solution and that the solution has the same physical properties as pure water.
Pay particular attention to sign and significant figures.
If you wish to use scientific notation, use the "e" format - eg. 7.31e4 = 73100 & 1.90e-2 = 0.0190. Do not enter units.
Data:
DHsol(CaCl2)(s)) = - 82.8 kJ.mol-1
specific heat of water = 4.184 J.g-1.deg-1
density of water = 1.00 g.cm-3
molar mass of CaCl2 = 111 g/mol
2006-10-08 08:50:33 · 3 answers · asked by darksoul3029 1 in Science & Mathematics ➔ Chemistry
ru boiling water?
2006-10-08 08:54:03 · answer #1 · answered by STORMY K 3 · 2⤊ 0⤋
you must review your thermodynamic book to get your answer
2006-10-08 09:49:41 · answer #2 · answered by source_of_love_69 3 · 0⤊ 0⤋
Do your own homework. lol
2006-10-08 08:59:00 · answer #3 · answered by St.Christopher the militant. lol 2 · 0⤊ 0⤋