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Given that the primitive unit cell of the f.c.c. lattice can be constructed by connecting the origin to the three adjacent face centers, show that this primitive cell is rhombohedral with the rhombohedral angle being equal to 60º (Note: a primitive unit cell contains only 1 lattice point).
Rank the organic compounds from most soluble to least soluble. To rank items as equivalent, overlap them.
what is the molar mass of an unknown molecular compound is 3.42grams dissolved in 41.8 grams benzene begins to freeze
In which one of the following molecules is the best Lewis structure a resonance structure? (a) CO2 (C = central atom) (b) ClO3- (Cl = central atom).
Calculate the pH of a buffer formed by mixing 85 ml of 0.13 M lactic acid (HL) with 95 ml of 0.15 M NaL (sodium lactate).
A foundry liberate 6.0 tons (U.S tons) of gas into the atmosphere every day. The gas mixture includes 2.5% sulfur dioxide (SO2) by weight. Explain how many pounds of SO2 are released in one week
What amino acids are preferred for this polypeptide? Draw the side chain structure of each amino acid that can be used for this polypeptide. Label them with both three letter and single letter codes.
If 2.00g of N2 gas has a volume of 0.40L and a pressure of 6.0atm, what is its Kelvin temperature
calorimetry can be used to find heats of combustion. suppose a calorimeter helps someone to determine that 4032 kj of heat is released during the combustion of 88.0 grams of propane, C3H8 (44.0 g/mol).
Write down and explain the feature(s) in the Schrödinger equation that lead to the "electron correlation problem". Next, explain the approximation(s) that lead to the introduction of effective nuclear charge (Zeffective). Be sure to define effecti..
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.150 M HClO(aq) with 0.150 M KOH(aq). The ionization constant for HClO is 4.0*10^-8
What volume of 5.00 x 103 M HNO3 is needed to titrate 100.00 mL of 5.00 x 103 M Ca(OH)2 to the equivalence point
What is the percent yield of a reaction using 10 moles of acetone and 16 moles of benzaldehyde and obtains
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