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People can easily float in the Great Salt Lake in Utah. Why is this? When you push on a heavy swinging door to go into a store, why is it harder to push open if you mistakenly push on the side closer to the hinges?
a 36.4 l volume of methane gas is heated from 15 degrees c to 98 degrees c at constant pressure. what is the final
The pH of the solution at the equivalence point. e) The pH of the solution after 40.0 mL of HCl are added.
Potassium iodide is added to common table salt, sodium chloride, to help prevent the enlargement of the thyroid gland, a condition known as goiter.
If 5.97 ml of a solution contains 2.54 mg of sodium ion, What is the molarity of the sodium chloride solution
What is the numerical value of the rate constant and what are the units? D) Calculate the rate of this reaction when the initial concentrations of OCl- and I- are 7.6 x10-3 M and 9.6 x 10-3M respectively.
Given the following reaction, calculate the enthalpy, entropy and free energy changes for this reaction at 25 degrees C. Mg(s) + H2O(g) yeilds Mg(OH)2(s) + H2(g)
Extract a solute from 100 mL of water using only 300 mL of ether. The partition coefficient between ether and water is 3.0. Calculate q, the fraction of solute that would remain in the water under each of the following extraction conditions
assume two 200.0-l tanks are to be filled separately with gases helium and hydrogen. find mass of each gas is required
orbits around a definite point in space made of neutrinos and electrons D) is not a definite point in space, but rather it is a cloud of smaller particles called quarks that deflect alpha particles
The same mass of solute is dissolved in 9.82 g of t-butanol instead of cyclohexane. What is the fexpected freezing point change of the solution
Problem- Aldol cleavage of which of the following sugars will produce one mole each of dihydroxyacetone and glyceraldehyde
Using a spectrometer and beers law to determine % of copper in a brass sample: what equations are used to determine all.
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