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A balloon is filled with He gas to a volume of 3.22 L at 32oC. The balloon is placed in liquid nitrogen until its temperature reaches -132oC. Assuming the pressure remains constant, what is the volume of the cooled balloon?
seperate two compounds efficiently, what alternatives would one consider to effect clean separation by distillation?
calculate the mass of a sample of gold that occupies 5.0 X 10^-3 cm3 if the density of gold is 19.3 g/cm
Determine each of the following. 1) the initial pH? 2)the volume of added acid required to reach the equivalence point
The initial concentration of some weak acid, HA, in an aqueous solution is 0.2150 M, at equilibrium the concentration of HA becomes 0.0955 mol/L.
A gas occupies 0.500L at 1.20 atm. what pressure is necessary to change the volume to 0.700L?
the equation of line determined from a Beers law plot is y=0.195x+0.4, what is the resistance of an unknown water sample if the assumed concentration is 1.8ppm. please show your work.
A 0.30 M solution of sucrose (C12H22O11) at 37oC has approximately the same osmotic pressure as blood. What is the osmotic pressure of blood?
three solutions are mixed together to form a single solution. on e contains 0.2 mol pbc2h3o22 the second contains 0.1
a balloon is filled to a volume of 7.00 x 102 ml at a temperature of 20.0 oc. the balloon is then cooled at constant
A sample of iron has a mass of 257.0 lb and a volume of 0.523 ft3. What is its specific gravity? and What are the units of specific gravity?
What is the balanced equation of sodium borohydride and 4-tert-butylcyclohexanone? The reduction reaction has the product 4-tert-butylcyclohexanol which is a mixture of cis and trans isomers.
FeS(s) dissolves by the addition of HNO3 in a manner similar to that of CuS(s). In the process, the Fe2+ ion is oxidized to Fe3+ ion. Write an equation for this reaction.
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