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Questions (10)
The system N2O4 <--->2NO2 maintained in a closed vessel at 60º C & a pressure of 5 atm has an average (i.e. observed) molecular
4 answers
4,894 views
how would you measure the resistance of an electrical device, such as a lamp, by the voltmeter-ammeter method?
1 answer
474 views
What is the resistance of 125 m of aluminum wire that has a diameter of 0.8118 mm?
The resistivity of aluminum is 2.824 x 10^-8
2 answers
581 views
if a negatively charged rod is brought near a negatively charged electroscope,
there will be no effect the leaves will fall the
3 answers
837 views
A 680 newton student runs up a flight of stairs 3.5 m high in 11.4 seconds. The student takese 8.5 seconds to run up the same
4 answers
4,464 views
work is being done when a force:
a) is exerted while pulling a wagon up a hill b) acts vertically on a cart that can only move
6 answers
6,914 views
1) What are the 3 basic forms of energy?
Since there are so many, I'm thinking of kinetic and potential, but what would be the
4 answers
1,273 views
on a force-time graph:
rectangle is shaded in from 2 to 8 on the x axis. It is shaded from 0 to 8 on the y axis. (so the base is
1 answer
699 views
what is sex determination?
1 answer
337 views
a particle moves along the y axis so that its position at any time t, for 0 is less than or equal to t which is less than or
4 answers
5,957 views
Answers (8)
Cal the xi fi and fixi then the total. Put the values in the formula of mean.since mean is given!! More easier and the final result comes as P=1 .Hence done!!!!
see same question how many grams nitric acid HNO3 must be dissolved in 350 ml water to make a solution with pH of 4.5"? or "how many ml of a 4.2M nitric acid solution are required to make 500 ml of solution with pH of 2.9
just change the value i found it on y!A find the [H+} in pH of 4.5 , 10^-4.5 = [H+] = 3.16 e-5 molar find the moles acid in 350 ml 0.350 litres @ 3.16 e-5 mol/litre = 1.11 e-5 moles of HNO3 find the grams using molar mass: 1.11 e-5 moles of HNO3 @ 63 g/mol
plz answer mine The system N2O4 2NO2 maintained in a closed vessel at 60º C & a pressure of 5 atm has an average (i.e. observed) molecular weight of 69, calculate Kp. At what pressure at the same temperature would the observed molecular weight be (230/3)
The system N2O4 2NO2 maintained in a closed vessel at 60º C & a pressure of 5 atm has an average (i.e. observed) molecular weight of 69, calculate Kp. At what pressure at the same temperature would the observed molecular weight be (230/3)
25(12) 25 (10+2) 250 + 50 (25x10+25x2) 300
4 x 7 = 28 Double of 4 is 8, so we will double 28 (4x2) x 7 = (28x28) or (4+4) x 7 = (28+28) answer 56)
So my slope doesn't have to be so exact to the k value? When I use the equation to predict the stretch, I get a value of .085 using the first two points and a value of .089 when using the first and last points. The given data table lists the actual stretch
