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In one experiment a student titrated 25.00 mL of an acidic solution containing Cu^2+ and Zn^2+ with 0.0123 M NaOH. The midpoints of the three pH jumps occurred at 15.35 mL, 19,77 mL, and 22.05 mL of added base. What was the concentration, in mol/L and mg/L, of Cu^2+ and Zn^2+ in the original solution? If the solution was prepared by dissolution of 0.654 g of brass in 250.00 mL solution, what the percentage of copper and zinc in the original sample of brass
How many atoms of neon occupy a volume of 14.3 L at STP.
A particular solution has a hydrogen ion concentration of 2.13 x 10-13 M. What is the pH of this solution?
If One gram (1.5 g) of glyceryl trioleate is completely hydrogenated.How many grams of hydrogen was used in the process.
write the balance the eguation fot the neutralization reaction between H2 SO4 KCH
When a ketone is treated with LiAlH4 followed by addition of water, what general class of product results?
determine the minimum concentration of the percipitation the cation from the solution of the left. 0.035 M BaNO3; Naf.
What error will this cause in their determination of the amount of iron in the table?
The Al2O3 does not react. If the sample residue weighs 2.675 g, what is the mass fraction of Fe2O3 in the original sample?
Using a sample of 0.0355 gram of an unknown molecular compound is dissolved in 1.000 g of liquid camphor at 200.0°C. Calculate the molar mass of the unknown compound if the camphor freezes at 157.7°C upon cooling.
Suggest at least two reagents other than sodium borohydride that could be used to carry out the reduction of 9-fluorenone to 9-hydroxyfluorene.
Confirm that the z-component of orbital angular momentum is a basis for an irreducible representation of A2 symmetry in C3v.
In an earlier problem we described the reaction of ammonia with oxygen to form nitrogen monoxide, NO.
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