Chemistry, 25.06.2019 13:00 cynone8254
Acalorimeter contains 20.0 ml of water at 15.0 °c . when 1.50 g of x (a substance with a molar mass of 76.0 g/mol ) is added, it dissolves via the reaction x(s)+h2o(l)→x(aq) and the temperature of the solution increases to 25.0 °c . calculate the enthalpy change, δh, for this reaction per mole of x. assume that the specific heat of the resulting solution is equal to that of water [4.18 j/(g⋅°c)], that density of water is 1.00 g/ml, and that no heat is lost to the calorimeter itself, nor to the surroundings.(a) express the change in enthalpy in kilojoules per mole to three significant figures. (b) determine the masses of titanium and iodine that react if 1.59×10^3 kj of heat is emitted by the reaction. (c)express your answer to three significant figures and include the appropriate units.
Answers: 1
Chemistry, 22.06.2019 00:00, lukeakalucas
Alarge marble is dropped in a graduated cylinder with 35ml of water in it. the water level increases to 49ml. what is the volume of the marble
Answers: 1
Chemistry, 22.06.2019 04:00, clairebear66
What three natural resources are found in the great lakes region
Answers: 2
Chemistry, 22.06.2019 17:30, shookiegriffin
I'm learning about the periodic tables and what each subject's configuration is. for example, hydrogen is 1s^1, but i don't understand how you get that. can someone me understand how to figure out how to figure this out? sorry if the question makes no sense, but it would really a lot if you could me understand! you so much if you can!
Answers: 1
Acalorimeter contains 20.0 ml of water at 15.0 °c . when 1.50 g of x (a substance with a molar mass...
Biology, 02.07.2019 08:30
Chemistry, 02.07.2019 08:30
Chemistry, 02.07.2019 08:30
Mathematics, 02.07.2019 08:30