subject
Chemistry, 06.10.2019 05:30 Reese1394

When a solid dissolves in water, heat may be evolved or absorbed. the heat of dissolution (dissolving) can be determined using a coffee cup calorimeter. in the laboratory a general chemistry student finds that when 24.22 g of babr2(s) are dissolved in 118.20 g of water, the temperature of the solution increases from 24.85 to 28.18 °c. the heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.84 j/°c. based on the student's observation, calculate the enthalpy of dissolution of babr2(s) in kj/mol. assume the specific heat of the solution is equal to the specific heat of water.

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 22.06.2019 04:30
How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer
Answers: 1
question
Chemistry, 22.06.2019 19:00
Convert the temperature of dry ice, –77 ∞c, into degrees fahrenheit and kelvin.
Answers: 2
question
Chemistry, 22.06.2019 20:30
Calculate the percent composition by mass of each element in al(oh)3. use at least three significant figures.
Answers: 1
question
Chemistry, 22.06.2019 22:30
Astudent pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. she then repeats the process using the same amounts of salt and water but this time she slowly stirs the mixture while it is dissolving. the student performs the experiment one more time but this time she stirs the mixture rapidly. the dependent variable in this experiment is: time for salt to dissolve speed of stirring amount of water mass of salt
Answers: 1
You know the right answer?
When a solid dissolves in water, heat may be evolved or absorbed. the heat of dissolution (dissolvin...
Questions
question
Mathematics, 14.03.2020 02:55
question
Mathematics, 14.03.2020 02:56
Questions on the website: 13722360