Wednesday
June 19, 2013

Posts by Rita


Total # Posts: 160

chemistry
woops i meant 0.005250707, still wrong.

chemistry
DrBob's solution for the molar fraction is wrong. I did what he said moles Na2SO4/ total moles: 0.293/55.802.... to get 0.00250679 and in my online quiz it was wrong.

Physics
A platform rotates at an angular speed of 2.2 rad/s.  A block rests on the platform a distance of 0.3m from the axis.  Static friction coeffient= 0.5.  Without any external torque acting on the system, the block is moved towards the axis.  Ignore the m...

Physics
a tank of helium gas used to inflate toy baloons is a pressure of 15.5 x 10 Pa and a temp of 293 k. The tank's volume is 0.020 m. How are a baloon would it fill at 1.00 atmosphere and 323 k

Chemistry
why should heating a content containing Zn and HCl be heated in fume hood.

debate
No, they are extra for a reason. It is more important to focus on your education than sports and things you do for fun.

Math/Algebra
Google it!!

5th grade
Neutrons?

sicence
A

4th grade math fractions
three different improper fractions that equal 4 1/2

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