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Lead(II) phosphate, Pb3(PO4)2 (s), is allowed to come to equilibrium with its ions in otherwise pure water. Ksp = 3.0 x 10^44. Calculate the equilibrium concentration of each ion.
Show your work in finding the mass of the nitrogen collected, The original sample, which decomposed to produce the nitrogen gas, weighed 0.1198 g. Find the percent nitrogen in the sample
Using pH-based arguments only, why do scientists use phosphate-based bufers instead of buffers made using acetic acid
A 1.800 g sample of solid phenol (C6H5OH) was burned in excess oxygen in a bomb calorimter whos heat capacity is 11.66 kj/°C. The temprature increased from 21.36°C to 26.36°C.
silver consists of two major isotopes with the following percent abundances and atomic masses 107ag 51.84 and 106.90509
134 mole of KCl and .167 mole of CaCl2 were dissolved in water. What is the total number of Cl ions in the solution?
Consider the reaction Fe + Sn^2+(1 x 10^-3 M) ? Fe^2+ (1.0 M) + Sn. Calculate the voltage theoretically generated by the cell.
If 2.00 mL of a 0.40 M NaOH solution is added to 65.0 mL of a buffer solution that contains 0.10 M HCN and 0.10 M NaCN, calculate the change in pH of the solution (i.e. pH[after] - pH[before] ). For HCN, Ka = 4.9 e-10.
Calculate the osmotic pressure for the solutions in prob # 14 and 20 when each is at 10.500C? (dEtOH= 0.789g/ml, dMeOH= 0.712g/ml)
a galvanic cellnbsp is set up at the temperature od 298 k using the given reaction fe fe2 0.10 m cd2 0.95 m cd
A reaction mixture in a 10.00-L flask contains 0.27 moles each of hydrogen and fluorine gases plus 0.45 moles of HF. What will be the concentration of H2 when this mixture reaches equilibrium
When a substance is heated it glows and emits a certain amount of radiant energy that corresponds to particular energies in the electromagnetic spectrum.
At a certain concentration of reactants the rate of appearance of water in the following reaction is 0.51 M/s.
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