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A solution is prepared by dissolving 49.3 g of of KBr in enough water to form 473 mkof solution. calculate the mass % in the soulutionif the density is 1.12 g/mL
A sample weighing 3.183 g is a mixture of Fe2O3 (molar mass = 159.69) and Al2O3 (molar mass = 101.96). When heat and a stream of H2 gas is applied to the sample
Show your calculations and determine the half-life of Tc-99 (in hours). (b)The delivery of a sample of Tc-99 from the reactor to the nuclear medicine lab of the hospital takes 3h.
Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br- and C9H7N is quinoline
calculate the number of moles of agcro4ksp9.0x1012 that will dissolve in 1.00l of 0.010 m k2cro4 solution. what will be
The solution was then titrated to a blue-black endpoint with 26.0mL of a 0.0163 M KIO3 solution. How many mg of Vitamin C were in the tablet ?? and what % of the powder was Vitamin C?? Please solve this out for me
Draw the acid/base balanced reaction when 4-methylphenol is reacted with 50% potassium hydroxide solution
a student placed glucose of 10.5g in a volumetric flaskmixed enough h2o to mix the glucose by swirling and mixed
Calculate the solubility of N2 gas in water if the pressure of N2 gas over the solution is 6.00atm. Express the answer numerically to three significant figures.
The pH of a 0.010 mol L-1 solution of a weak monoprotic acid is 2.09 at 25oC. What is the pKa for this acid
Write a detailed sheet/ flow chart for the isolation and purification of 1-bromobutane. Designate how each minor-product is removed form the major product and which layer holds the product in each experimental step performed.
How much heat is required to convert 32 g of ethanol at 27 degrees C to the vapor phase at 78 degrees C?
Calculate the density in kg/m3 using (a) the ideal gas equation of state and (b) the compressibility factor equation of state in conjunction with the law of corresponding states.
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