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Question- The metal gold crystallized in a face centered cubic lattice with an atomic radius of 144.2 pm. what is the density of gold?
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An inorganic chemist studying the reactions of phosphorus halidesmixes 0.1050 mol of PCl5with 0.0420 mol of Cl2 and0.0420 mol of PCl3 in a0.5000 L flask at 250°C. PCl5(g) reversible reaction arrowPCl3(g) + Cl2(g)Kc = 4.2 ...
A 43 kg person drinks 430 g of milk, which has a "caloric" value ofapproximately 3.0 kJ/g. If only 15% ofthe energy in milk is converted to mechanical work, how high (inmeters) can the person climb based on this energy i ...
Aqueous potassium phosphate was mixed with aqueous magnesium chloride, and a crystallized magnesium phosphate product was formed. Consider the other product and its phase, and then write the balanced molecular equation f ...
A student takes 5.0mL of a stock FeSCN2+ solution and dilutes it with deionized water to a volume of 50mL. He then puts the solution in a Spectronic 20 instrument and determines the the % transmittance of the new solutio ...
You are required to read the following case study and prepare a Project Feasibility Study and Timeline based on the information contained in the case study. Residential Duplex Development Project You own a real estate ...
Explain why the mass of the crucible and anhydrous salt is less than the mass of the crucible and the hydrate. What is the chemical formula of copper (II) sulfate?
While heating your copper sulfur mixture the original crucible lid fell and was broken. You replace the lid with another one. You used the mass of the original lid in your calculations. However the mass of the second lid ...
Suppose 1.7 g of zinc is treated with 6.2 g of pure hydrogen chloride. What is the maximum mass (in g) of hydrogen gas that can be produced?
Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons. Show the formal charges of all atoms in the correct structure.
The reaction of solid dimethylhydrazine ((CH3)2N2H2) and liquefied dinitrogen tetroxide (N2O4) has been investigated as a rocket fuel; the reaction produces gaseous carbon dioxide (CO2) nitrogen (N2) and water vapor (H2O ...
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