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A mixture contains only barium nitrate and barium chloride. A 2.50-g sample of this mixture was dissolved in 100.0 mL of water, and 0.750 M silver nitrate was added dropwise until precipitation was complete. The precipitate was collected, dried and weighed. What was the mass percent of barium chloride in the mixture if the mass of white solid collected was 1.83 g?
What product or products would you expect to obtain by the addition of bromine to cis-cinnamic acid, assuming that it reacts by the same mechanism as the trans acid
Use the free energies of formation given below to calculate the equilibrium constant (K) for the following reaction at 298 K.
what is the corresponding pressure difference between points A and B, in mmHg. At which point (A or B) is the pressure higher, and why? The temperature is 60 °F throughout
Calculate ?SO (universe) for the formation of 1.00 mol of HCl (g) from gaseous hydrogen and chlorine at 25 OC. Is the reaction spontaneous at that temperature
earlier, lower-energy TS. Can model reaction coordinate as inverse parabolic potential well. What happens when we make X a better leaving group? Model by tilting entire plot forward. What happens when we make X a better leaving group?
A gas occupies 22.4 L at STP and 14.5 L at 100°C and 2.00 atm pressure. How many moles of gas did the system gain or lose?
calculate the average rate of disappearance of A for each 40-s interval, in units of mol/s. c.) what additional information would be needed to calculate the rate in units of concentration per time?
Determine the concentrations of K2SO4, K , and SO42- in a solution prepared by dissolving 2.11 × 10-4 g K2SO4 in 2.00 L of water. Express all three concentrations in molarity.
Calculate the mass of nitrogen dissolved at room temperature in an 78.0 L home aquarium. Assume a total pressure of 1.0 atm and a mole fraction for nitrogen of 0.78.
in a coffee-cup calorimeter 1.60 g of nh4no3 is mixed with 78.0 g of water at an initial temperature of 25.00degc.
What structure is responsible for the base peak of a cyclohexene and an unsaturated ketone.
From a consideration of the Lewis structure of the thiocyanate ion, in which carbon has a double bond with both the sulfur and nitrogen atoms, what are the formal charges on the sulfur, carbon, and nitrogen atoms are, respectively
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