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For single bonds between similar types of atoms, how does the strength of the bond relate to the sizes of the atoms? Explain.
The double-replacement reaction between silver-nitrate and sodium bromide produces silver bromide, a component of photographic film.
A sample of material contains contains 20 mg of I ^131. Calculate: A) The number of I ^131 atoms initially present. B) The activity in becquerels and curies.
The calcium in a second 10.00-mL aliquot was isolated as CaC2O4(s) redissolved in acid, and titrated with 12.21 mL of the EDTA solution. Assuming that 15 to 300 mg of magnesium and 50 to 400 mg calcium per day are normal, did this specimen fall wi..
Draw the reaction scheme (with arrows) of the Diels Alder rxn between maleic anhydride and furan. draw both the endo and exo adducts
If 10.0 mL of .300 M KOH are required to neautralize 30.0 mL of gastric juice (HCl), what is the molarity of the gastric juice?
Arrange the following reactions according to increasing change of entropy values. A. CH4(g) + H2O (g) = CO(g) + 3H2(g) B. C(s) + O2(g) = CO2 (g) C. H2O2(liquid) = H2O(liquid) + 1/2 O2 (g)
A certain reaction has deltaH standard = 57.3 Kj, DeltaS standard =235 J/K. At what Temp will equilibrium be reached at standard conditions, in celsius
A 0.9161 g sample which contained monoprotic lactic acid, was dissolved in 75.0 ml of water and titrated to the equivalence point with 32.25 ml of a 0.1057 m NaOH solution.
if .43g of aluminum foil was dissolved in sufficient 3M KOH solution, and the solution was acidified with 4M H2SO4, what was the theoretical yield of KAl(SO4)2 * 12H2O
The specific heat of Ti is .523 J/gcelcius. What is the final temperature of 62g of Ti intially at 41celcius after 8.5kj of heat is added?
2 L of an unknown concentration of the weak base ammonia are standardized. 50.0 mL of the basic solution are titrated with 0.200 M HCl. The end point occurs after 71.0 mL of acid are added. What is the concentration of ammonia in the 2 L flask
What mass of helium gas is needed to pressurize a 112.0 L tank to 262 atm at 25°C?
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