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Find the equilibrium pH of a 10^-3 M NaCN solution by using graphical methods, try to find the equilibrium pH with the charge balance and separately with the proton condition.
A moth-ball, composed of naphthalene (C10H8), has a mass of 1.32 g. How many naphthalene molecules does it contain?
what is the entropy of a mixture made of 2.4 moles of O2 and 9.2 moles of N2 at the same temperature and pressure?
The half life of a first order reaction is 13 min. If the initial concentration of reactant is 0.085 M, what is its concentration after 8.2 minutes.
Explain why the element bromine prefers to have its two atoms form covalent bonds rather than ionic bonds
When 16 mL of water at 19 C is combined with 15 mL of water at 59 C, what is the final temperature of the water?. The specific heat of water is 4.184 J/g/K and its density is 1.0 g/mL.
For each species listed, indicate the hybrid orbital set (sp2, sp3d, etc) employed by the central atom
a student prepares benzoic acid by hydrolying 6.47g of methyle benzoate (FW 136.15g/mol) using excess sodium hydroxide. If the student recovers 3.71g
What is the pressure exerted by some nitrogen gas collected in a tube filled with water on a day when the room temperature is 18.0ºC and the room pressure is 750.0 mmHg?
If I have 2.4 moles of gas held at a temperature of 97 C and in a container with a volume of 45 liters, what is the pressure of the gas
How much PPP do you need to make 500ml of the solution if you only have 25g and you know that the MW of PPP is 478 g/mole.
Suppose the reaction Ca3(PO4)2 + 3H2SO4 ------ > 3CaSO4 + 2H3PO4 is carried out starting with 103 g of Ca3(PO4)2 and 33.7 g of H2SO4. How much phosphoric acid (H3PO4) will be produced?
Compare this general form of this phase diagram with the interactive phase diagram for CO_2 and classify points a through g on the phase diagram according to the number of phases present at each point.
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