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The half life for radioactive decay (a first-order process) of plutonium-239 is 24,000 years. How many years would it take for one mole of this radioactive material to decay so that just one atom remains.
What concentrations of acetic acid (pKa = 4.76) and acetate would be required to prepare a 0.10 M buffer solution at pH 5.0. Enter your answer to two significant figures.
Is it possible that some 3-octene could form in the reaction of 2-octanol with catalytic sulfuric acid? Propose a mechanism that explains
The second virial coefficient B and the third virial coefficient C for A are -0.021 L/mol and 0.0012 L^2/mol^2 at 273 K respectively. By what percentage does the compressibility change
Some AgCl(s) has been placed in a beaker of water. After some time, the solubility of Ag+ and Cl- was measured to be 2.5 x 10-5 M. Using Calculations, determine whether the system has reached equilibrium.
Sodium bromate is used in a mixture which dissolves gold from its ores. Calculate the mass in grams of 4.68 mol of sodium bromate.
The first-order rate constant for the reaction of methyl chloride (CH3Cl) with water to produce methanol (CH3OH) and hydrochloric acid (HCl) is 3.32 10-10s-1 at 25°C. Calculate the rate constant at 39°C if the activation energy is 116 kJ/mol.
Suggest a mechanism for the base catalyzed condensation of cyclohexanone with two molecules of benzaldehyde to give dibenzalcyclohexanone
In the balanced redox reaction: 2C2H6(g) + 7O2(g) > 4CO2(g) + 6H2O(g), which species is oxidized
Carbon tetrachloride reacts at high temperatures with oxygen to produce two toxic gases, phosgene and chlorine.
A 0.3146-g sample of a mixture of NaCl(s) and KBr(s) was dissolved in water. The resulting solution required 41.80 mL of 0.08765 M AgNO3(aq) to precipitate the Cl-(aq) and Br-(aq) as AgCl(s) and AgBr(s). Calculate the mass percentages of NaCl(s) a..
How many grams of water can be cooled from 30 degrees C to 18 degrees C by the evaporation of 49g of water? (The heat of vaporization of water in this temperature range is 2.4kJ/g . The specific heat of water is 4.18J/k
Question- A solution contains 5.37E-3 M chromium (III) acetate and 9.00E-3 M lead nitrate. Solid sodium hydroxide is added slowly to this mixture. What is the formula of the substance that precipitates first
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