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A solution contains 4.64g KCl in 178 mL of solution. The density of the KCl solution is 1.14 g/mL. What is the molarity,M, for the potassium chloride solution?
calculate the solubility of silver sulfate in water at 25 degree celcius, express answer in molarity; and how would the solubility of silver sulfate change
The half-life for the radioactive decay of U-238 is 4.5 billion years and is independent of initial concentration. How long will it take for 10% of the U-238 atoms in a sample of U-238 to decay?
When 0.0172 mol HI is heated to 500 K in a 2 L sealed container, the resulting equilibrium mixture contains 1.9 g of HI. Calculate Kc for the decomposition reaction 2HI(g) *) H2(g) + I2(g) .
Isotopes Decay, Isotopes decay according to first order kinetics with a predictable half life
Calculate the pH of the solution after a)10.0mL b)20.0mL c)30.0 mL of acid have been added; pkb of (CH3)3N=4.19 at 25 degree celcius.
The average water loss during a triathlon is 1.40 L in one hour. The average time to finish a triathlon is 12.6 hours. How much sweat is lost in m^3?
Calculate w (in kJ) when 376 g iron (III) oxide (MM = 159.7 g/mol) reacts with excess carbon to produce carbon dioxide gas at 335 K:
a sample of a certain beverage contains 1.00g of tartaric acid, H2C4H4O6. The beverage is titrated with 0.100M NaOH, how many millimeters of base are required to neutralize the tartaric acid.
If cAMP concnetration increases what happens to each of these pathways in the liver? Name the critical enzyme that becomes phosphorylated (not necessarily by PKA) that effects the flux through the pathway
Draw the Lewis structure for each including formal charges and describe in paragraph format how you went about solving the problem and making sure the answer was correct.
Explain why a 1m solution of the compound FeCl2 in water has a lower freezing temperature than a 1m solution of KCl in water and what is the empirical formula
According to the valence bond theory, which of the following molecules involves sp2 hybridization of orbitals on the central atom?
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