Saturday
May 25, 2013

# Posts by george

Total # Posts: 766

Wastewater treatment
What is the molarity of 24.5 grams of sulfuric acid dissolved in a liter of water?

Math
what is $10.5002 rounded to the nearest cent, dime, and dollar. My work: cent:$10.50 dime: $10.50 dollar:$2:00 Did I do good?

physics
The balloon contains 0.30 {\rm mol} of helium starts at a pressure of 115 {\rm kPa} and rises to an altitude where the pressure is 55.0 {\rm kPa}, maintaining a constant 300 {\rm K} temperature. (A)By what factor does its volume increase? (B)How much work does the gas in the b...

Physics
I got like, 7431, is that correct? Because that seems rather large.

Physics
Find the speed of sound (in m/s) at -35°C at 1 atm pressure in dry air.

Physics
so do you not need the diameter for anything?

Physics
Rotating initially at 1800 rpm, a wheel with a diameter of 74.0 cm is brought to rest in 11.0 s. Calculate the magnitude of its angular acceleration in radians/second^2

chemistry
we have a bag that can hold up to 775 ml. we have baking soda and 6 molar of hydrochloric acid. how can we find out how much baking soda and acid we need so that when they react, the gas will fill the bag up just enough so that it wont pop

Crime scene chemistry
we dont know.

physics
A uniform electric field of magnitude 339 N/C is directed along the +y-axis. A 6.00 µC charge moves from the origin to the point (x, y) = (-40 cm, -33 cm).What is the change in potential energy associated with this charge ?

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