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Hydrchloric acid is usually purchased in a concentrated form that is 37.0% HCL by mass and has a density of 1.20g/ml. How much concentrated solution would you take to prepare 2.85L of 0.410M HCl by mixing with water?
write the balanced chemical equation and corresponding equilibrium expression for the each step in the ionization of phosphoric acid ( apolyprotic acid ) in water?
What is the ph of a solution that is 0.0020 M acetic acid and 0.010 M sodium acetate? Note: the pKb for sodium acetate is 9.25
When an ice cube is dropped into a Styrofoam cup containing 195 g of coffee at 97.0 oC, the thermal energy used to melt the ice is 2.1 kJ what is the final temperature of the coffee closest to ? (Assume a specific heat of 4.184 J/g oC for the coff..
Equilibrium shift of the reaction and the pH of solution, 1. The pressure on each of the following systems is decreased from 5 atm to 1 atm. Which way does the equilibrium shift in each of the following systems?
What is the pH of a solution of 0.20M RbCHO2? Must use an ICE table (Initial Concentration, Change in Concentration, Equilibrium Concentration) and the quadratic formula unless the "x is small" approximation can be used.
Calculate the entropy and the free energy of mixing for ethanol and water at 25c if the mass percent of ethanol is 15
2.50 moles of cobr2 are introduced into a 2.00 liter flask at 0degrees and heated to a temp of 73 degree celcius. at
Write an equation to show how diethyl malonate can react with sodium ethoxide, Na+OCH2CH33, in an acid-base reaction.
entropies of atom combination to determine if any of the following reactions have an equilibrium constant greater than 1. Find the reaction with the greatest equilibrium constant. Find the reaction with the smallest equilibrium constant.
How does the strength of the attration between water molecules and sodium and chloride ions compare with the strength of the attraction between the sodium ions and chloride ions?
You are told that K=3.76x10^-5 for I2(g)=2I(g) at 1000K. You begin an experiment by injecting 1.00 mole of I2 into a 2.00 liter box at 1000K. When the system comes to equilibrium, what will be the concentration of I2 and I in the system at equilib..
When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 16.8g of carbon were burned in the presence of 57.4g of oxygen, 12.6g of oxygen remained unreacted. What mass of carbon dioxide was produced
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