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A 1.000-g sample of stannous fluoride gives a 1.175-g precipitate of stannous phosphate. Compute the theoretical yield and percent yield of Sn3(PO4)2
Calculate the concentrations of the protoneated and unprotonated forms of bromothymol blue in 100 mL of a pH 8.1 buffer solution to which 1.0 mL of 0.005 M solution of bromothymol blue in 80% wate/20%ethanol has been added.
the standard free energy of activation of a reaction a is 86.2 kj mol-1 20.6 kcal mol-1 at 298 k. reaction b is one
To the alchemists, gold was the material representation of purity. It is a very soft metal that can be hammered into extremely thin sheets. If a 1.54 g piece of gold is hammered into a sheet whose area is 34.4 ft2, what is the average thickness of..
Calculate the molar solubility of iron sulfide in a solution that is saturated with hydrosulfuric acid, H2S ( [H2S] = 0.1 M) and has a pH of 2.0. Ka1 = 8.9 x 10^-8 and Ka2 = 1.2 x 10^-13.
calculate the number of moles in each of the following quantities.a atoms of each element in 3.35 moles of
At a certain temperature, a volume of 100 mL of saturated barium carbonate solution contains 0.00216 g of BaCO3 (MW=197.3 g/mol).
How much heat is needed to vaporize 2.42 g of liquid oxygen if the molar heat of vaporization for oxygen is 1,629 cal/mole?
Calculate the amount of heat energy (q) gained or lost when 180g of water is cooled from 65.0*C to 28.5*C. What is the sign of q for this calculation
Carbon tetrachloride may react with oxygen to produce chlorine and carbonyl chloride.2CCl4(g) + O2(g) 2COCl2(g) + 2Cl2(g); Kc = 9.9 × 10^51. What is Kc for the following equilibrium?COCl2(g) + Cl2(g) CCl4(g) + ½O2(g)
the volumes for both reactants were mistakenly and unknowingly reduced by 5 in all of the beers law plot solutions.
add the angular wave function for a 2s electron of carbon to that of a 2py electron of the same carbon atom. subtract
What type of glassware would you use to measure the volume of a .002035 M sodium nitrate
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