Fungal laccase, a blue protein found in wood- rotting fungi, is 0.390% Cu by mass. If a fungal laccase molecule contains four copper atoms, what is the molar mass of fungal laccase?
Answer to relevant QuestionsPortland cement acts as the binding agent in concrete. A typical Portland cement has the following composition: Assuming that the impurities contain no Ca, Al, or Fe, calculate the mass percent of these elements in this ...A sample of urea contains 1.121 g N, 0.161 g H, 0.480 g C, and 0.640 g O. What is the empirical formula of urea? A compound contains only carbon, hydrogen, and oxygen. Combustion of 10.68 mg of the compound yields 16.01 mg CO2 and 4.37 mg H2O. The molar mass of the compound is 176.1 g/ mol. What are the empirical and molecular formulas ...Balance each of the following chemical equations. a. KO2(s) + H2O(l) ( KOH(aq) + O2(g) + H2O2(aq) b. Fe2O3(s) + HNO3(aq) ( Fe(NO3)3(aq) + H2O(l) c. NH3(g) + O2(g) ( NO(g) + H2O(g) d. PCl5(l) + H2O(l) ( H3PO4(aq) + HCl(g) e. ...In the production of printed circuit boards for the electronics industry, a 0.60-mm layer of copper is laminated onto an insulating plastic board. Next, a circuit pattern made of a chemically resistant polymer is printed on ...
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