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Titanium (w=6.94x10^-19J) and silicon (w=7.77x10^-19J) surfaces are irradiated with UV radiation with a wavelength of 217nm. What is the wavelength of the electrons emitted by the titanium surface?
the students product is contaminated with 5% o a constitutional isomer. give the approximate expected melting point of the students product
distinguish between an organic molecule that is dextrorotary and one that is levorotary.
calculate the volume of 1.420 M NaOH required to titrate 38.70 ml of a 1.50 M H3PO4 solution
How much heat can be obtained by burning 14 pounds of propane? (Remember to look at this from the viewpoint of the surroundings, since the question asks how much heat can be OBTAINED.)
A chemical reaction releases 58,500 J of heat into 150 g of water. Assuming no heat is lost to the surroundings
Determine the value of Kc for the following reaction if the equilibrium concentrations are as follows: [PCl5]eq = 0.56 M, [PCl3]eq = 0.23 M, [Cl2]eq = 4.4 M. PCl5(g) PCl3(g) + Cl2(g)
What alkene (including cis and trans isomers) would be produced by the dehydration of the following alcohols. Where possible, predict the relative amounts of each product according to Zaitsev's rule.
When solid copper is added to nitric acid, copper(II) nitrate, nitrogen dioxide, and water are produced. Write the balanced chemical equation for the reaction. (Use the lowest possible coefficients. Use the lowest possible coefficients. Include st..
an aqueous solution of phosphoric acid h3po4 contains 285g h3po4 in 400 ml solution and has a density of 1.35gml.
The osmotic pressure of blood plasma is 28 mm Hg at body temperature at body temperature, 303 K. The quantity of plasma proteins present has been measured to be about 60 g/L.
The Ka of a monoprotic weak acid is 5.81 × 10-3. What is the percent ionization of a 0.147 M solution of this acid?
If 55.0 mL of ethanol ) initially at 8.0C is mixed with 55.0 ml of water (density = 1.0g/mL) initially at 28.6C in an insulated beaker, and assuming that no heat is lost, what is the final temperature of the mixture
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