Chemistry, 10.07.2019 13:10 monasiamcneill
The reaction nacl(s) → nacl(aq) is performed in a coffee cup calorimeter, using 100 ml of h2o(l) and 5.00g of nacl. if the temperature of solution after mixing decreased by 2.30°c, what is the δhrxn in kj/mol? assume the heat capacities of all solutions are 4.18 j/g°c, and densities of all solutions are 1.00 g/ml. the molar mass of nacl is 58.44 g/mol
Answers: 1
Chemistry, 21.06.2019 20:10
Why is the vapor pressure of a warm lake higher than the vapor pressure of a cold lake? o a. warm water has a greater heat of vaporization. ob. warm water evaporates more quickly. cool water evaporates more quickly. od. cool water has a greater heat of vaporization.
Answers: 1
Chemistry, 22.06.2019 09:40
Apiece of copper has a temperature of 75.6 0c. when the metal is placed in 100.0 grams of water at 19.1 0c, the temperature rises by 5.5 0c. what is the mass of the metal?
Answers: 1
Chemistry, 22.06.2019 13:30
How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.
Answers: 1
Chemistry, 22.06.2019 20:00
For the reaction c6h14(g) & longrightarrow; c6h6(g) + 4h2(g), δp(h2)/δt was found to be 2.5 x 10-2 atm/s, where δp(h2) is the change in pressure of hydrogen. determine δp(c6h14)/δt for this reaction at the same time.
Answers: 2
The reaction nacl(s) → nacl(aq) is performed in a coffee cup calorimeter, using 100 ml of h2o(l) and...
Chemistry, 06.06.2020 03:01
Mathematics, 06.06.2020 03:01
English, 06.06.2020 03:01
English, 06.06.2020 03:01
Mathematics, 06.06.2020 03:01
History, 06.06.2020 03:57
Mathematics, 06.06.2020 03:57
Mathematics, 06.06.2020 03:57
Mathematics, 06.06.2020 03:57
Mathematics, 06.06.2020 03:57
Social Studies, 06.06.2020 03:57
Physics, 06.06.2020 03:57