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Calculate the wavelengths of the following objects:
a) a muon(a subatomic particle with a mass of 1.884x10^-25 g) traveling at 3.00x10^2 m/s
b) an electron(me=9.10939x10^-28 g) moving at 4.20x10^6 m/s in an electron microscope.
c) an 82 kg athlete running a 4 minute mile
d) earth(mass=6.1x10^27) moving through space at 3.2x10^4 m/s
Compound X is a miracle drug used to cure every sneeze and sniffle. It is very expensive though and customers complain it doesn't always work as well as it should.
Calculate the molar solubility of the following compounds from the Ksp values given, Zn(OH)2
What is the density of lead if a rectangular bar measuring 0.500 in height, 1.55 in width, and 25.00 in length has a mass of 220.9g.
Substitution and elimination reactions are competing reactions. Under what conditions can you ensure that substitution will predominate
What is the percent yield of a reaction in which 212 g phosphorus trichloride reacts with excess water to form 109 g HCl and aqueous phosphorus acid (H3PO3)?
The solubility of CaSO4 in pure water at 0oC is 1.13 gram(s) per liter. What is the value of the solubility product.
he most probable mechanism of reactivity for solvolysis of benzyl chloride is a) Sn1 b) Sn2 c) E1 d) E2. The most probable mechansim of reactvity for solvolysis of 2-chloro-norborane
The first appearance of a yellow color that lasts for more than 30 seconds occurs after 14.50 mL KI have been added. What is the value of the ion product of the titration?
1.00 mole of pure Cl2 are placed in a 1.00-L container. If x moles of NOCl react, what is the equilibrium concentration of Cl2? Why is the answer C) 1 + x/2
How many grams of a stock solution that is 87.5 percent H2SO4 by mass would be needed to make 275 grams of a 55.0 percent by mass solution.
What is the percent yield of ammonia when 150.0 g of nitrogen reacts with 32.1 g of hydrogen if the actual yield is 174 grams?
A buffer solution was prepared by adding 4.95 g of sodium acetate, NaCH3CO2, to 2.50 x 10^2 mL of 0.150 M acetic acid, CH3CO2H. What is the pH of the buffer?
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