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You have a piece of metal alloy that weighs 160.417 g. Its volume is 23.51 cm^3. The metal is an alloy (mixture) of nickel and aluminum, which have densities of 8.908 g/cm^3 and 2.70 g/cm^3, respectively. Assume there is no change in the relative volume of the individual metals as they are mixed to form the alloy. Calculate the mass percentage of nickel and aluminum in the alloy as well as the alloy's density.
The most common source of copper (Cu) is the mineral chalcopyrite (CuFeS2). How many kilograms of chalcopyrite must be mined to obtain 395 g of pure Cu?
The equilibrium constant for the following gas phase reaction is 0.50 at 600°C. A mixture of HCHO, H2, and CO is introduced into a flask at 600°C.
What mass of AgBr would precipitate from this mixture? [Hint: Ksp of AgBr = 5.4*10^-13 and Kf of Ag(CN)2 is 1.0*10^21]
Choose the correct expression for Keq and description (homogeneous or heterogeneous) for the following reaction: 2 PbO(s) + 2 SO2(g) 2 PbS(s) + 3 O2(g)
Write the electron configuration for the ground states and the valence states of Be, B, C and N atoms so that each one can form the maximum number of 2c-2c (ordinary electron-pair) bonds.
Suppose we want a soln containing 150 micrograms of the protein at a concentration of .5 mg/ml. To do this we will first evaporate the liquid from enough of the protein soln to get 150 micrograms. How much coln do we need to start with. How much H..
in a concentration calculation if we are given the solute measurement in grams and the volume of solution in liters
Calculate the mass of the deuteron given that the first line in the lyman series of H lies at 82,259.098 cm-1, whereas that of D lies at 82,281.476 cm-1 , and calculate the ratio of the ionization energies of H and D.
A hydrate has the following percent composition: Pb = 54.61%, C = 12.66%, H = 1.61%, O = 16.88% and H2O = 14.24%. What is the formula of the hydrate.
Titration of metal ion with EDTA. using the spreadsheet equation 11-11 to compute the curves (pM versys mL of EDTA added) for the titration of 10 mL of 1.00 mM M2+ (=Cd 2+ or Cu2+) with 10.0 mM EDTA at pH 5.00. Plot both curves on one graph.
A compound has a pKa of 7.4. To 100 mL of a 1.0 M solution of this compound at pH 8.0 is added 30 mL of 1.0 M hydrochloric acid. What is the pH of the resulting solution
Explain the Coordination Chemistry and Chemical Speciation Utilized in the Analysis of Fluoride in Water Samples by Fluoride Ion-Selective Electrode.
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