Answers: 1
Chemistry, 22.06.2019 17:10
)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.
Answers: 1
Chemistry, 22.06.2019 21:30
Electromagnets coils of wire paper clips picked up 10 3 15 6 20 9 25 12 ms. owens' class was studying magnets. ms. owens showed her students how to make an electromagnet using a nail, a d-cell battery, and plastic coated wire. the students wrapped the wire around the nail and then attached the ends to the battery. when they were finished, they tested their magnets by investigating how many paperclips their magnets could pick up. they also tested whether they could increase the strength of their electromagnets by using more coils of wire. they recorded the class average of their results in the data table seen here. ms. owens asked her students to graph their data in a line graph. how should the students label the x-axis on their line graph? a) size of battery b) number of paper clips c) number of coils of wire d) strength of electromagnet
Answers: 2
Chemistry, 23.06.2019 00:00
Exit what is the density of an object having a mass of 5.0 g and a volume of 45.0 cm3?
Answers: 1
Intermolecular forces are what determine the strength of attractive force between particles. Which w...
Biology, 23.07.2019 08:00
History, 23.07.2019 08:00
Social Studies, 23.07.2019 08:00
Mathematics, 23.07.2019 08:00
Computers and Technology, 23.07.2019 08:00
Physics, 23.07.2019 08:00
Advanced Placement (AP), 23.07.2019 08:00
English, 23.07.2019 08:00
History, 23.07.2019 08:00
Chemistry, 23.07.2019 08:00
History, 23.07.2019 08:00
English, 23.07.2019 08:00
Chemistry, 23.07.2019 08:00