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The secondary bonding of gas molecules to a solid surface is a common mechanism for measuring the surface area of porous materials, by lowering the temperature of a solid well below room temperature, a measured volume of gas will condense to form a monolayer coating of molecules on the porous surfacce. For a 100g sample of fused copper catalyst, a volume of 9*10^3 mm^3 of nitrogen (0C, 1atm) is required to form a monolayer upon condensation. calculate the surface area of the catalyst in unit of m^2/kg. take area covered by nitrogen molecule as .162nm^2.
Calculate the change in ph when 6 ml of 0.1 M HCl is added to 100 ml of a buffer solution that is 0.1 M in NH3 and 0.1 M in NH4Cl.
what is the relevance of half filled and completely filled orbitals in ionisation enthalphy ditermination.
The density of solutions are assumed to be the same as water. If the density of all 3 solutions was actually 1.1 g/mL, how would the heat of the reaction be affected?
odium carbonate (Na2CO3) can be produced by heating sodium bicarbonate (NaHCO3). A student heats 5.128 g sodium bicarbonate to completely decompose the sample to sodium carbonate.
What is the molarity of the solution that was prepared by dissolving 3.2 g of sulfuric acid in water to a total volume of 500 mL
From 5g of benzopinacol you obtained benzopinacolona 75% crude. The yield after recrystallization was 2 grams. benzapinacol molecular weight = 366.46 g / mol benzopinacolone molecular weight = 348.44 g / mol determine:
the reduction table in your notes, calculate the standard cell potential for the following reaction. F2(g) + 2 Cl-(aq) 2 F-(aq) + Cl2(g)
Calculate the mass of water formed by the complete reaction of 758 g of propane (C3H8) with excess oxygen
How many grams of copper may be formed by the passage of 22,988 C through an electrolytic cell that contains an aqueous cuprous
Write an equation for this reaction? which species acts as the nucleophile? Which species acts as the electrophile?
Calculate the theoretical yield of C2H5Cl when 135 g of C_2H_6 reacts with 225 g of Cl_2, assuming that C_2H_6 and Cl_2 react only to form C_2H_5Cl and HCl.
Analysis with an elaborate instrument indicates that substance A contains two elements. Substance B and substance C react to give a new substance D. Substance E decomposes upon heating to give substance F and substance G. Heating substance H to 10..
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