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If 15.78 mL of a Na2S2O3 solution were required to titrate the iodine formed from 20.95 mL of a 0.0111 M KIO3 solution and excess KI, what is the molarity of the Na2S2O3 solution?
What is the theoretical yield of chromium that can be produced by the reaction of 40.0 g of Cr2O3 with 8.00 g of aluminum according to the following equation?
Show the Chemical behavior of an atom - The chemical behavior of an atom is determined by most directly by the
A copper refinery produces a copper ingot weighing 75 kg. the density of the copper is 8.94 g/cm^3. if the copper is drawn into a wire whose dimeter is 8.250mm
When 20 mL of a 315 mL stock solution containing 2.2 M AlCl3 is diluted to 81 mL, what is the concentration of Al3+ in the new solution.
Write a reaction for the formation of a peptide bond between alanine and serine. React the amino group of alanine with carboxyl group of serine. Remember that there are 2 products in this reaction.
Calculate the ratio of rates of effusion of O2 versus Cl2. Record your answers to three significant figures. The concentration of CO2 in the atmosphere is 375ppm (by volume). What is the mole fraction of CO2 in the atmosphere?
calculate the energy (in kJ) of a photon which has a wavelength of a mircowave with a wavelength of 2.84 cm
Bond Energies, Using the bond energies below, determine the value and sign of delta H for the
How much heat is evolved in converting 1.00 mol of steam at 145°C to ice at -50.0°C? The heat capacity of steam is 2.01J/g?°C and of ice is 2.09J/g?°C.
In the diels-alder reaction of cyclopentadiene and maleicanhydride what are the two side reactions of cyclopenadiene
What mass of sucrose should be combined with 455 g of water to make a solution with an osmotic pressure of 8.75 atm at 320 K?
at 25 C and 1.0 atm, .25 g of a gas dissolves in 1.00L of water. what mass of the gas dissolves in 1.00L of water at 25C and 3.0 atm
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