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Molar mass of NH3... | Filo
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SOLVED:Calculate the molar mass of each of the following compounds: (a) hydrogen fluoride, HF (b) ammonia, NH3 (c) nitric acid, HNO 3 (d) silver sulfate, Ag2 SO4 (e) boric acid, B(OH)3
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SOLVED: What is the molarity of a 25.0% (v/v) aqueous isopropyl alcohol solution? The density of isopropyl alcohol (C3H8O, molar mass 60.1 g/mol) is 0.786 g/mL.
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A steel container of mass 135 g contains 24.0 g of ammonia, NH3, which has a molar mass of 17.0 g / mol The container and gas are in equilibrium at 12.0^∘ C . How much heat has to be removed to reach a temperature of -20.0^∘ C ? Ignore the change in volume of the steel. | Numerade
2020年5月12日
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How To find the molar mass of NH3... | Filo
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Moles and Molar Mass Part 1 : The mole provides a convenient package where we can make a connection between the mass of a substance and the number (count) of that substance. This is a familiar concept if you have ever bought pieces of bulk hard candy, where you purchase candy by mass rather than count. Typically, there is a scale provided for weighing the candy. For example, a notice placed above the candy bin might read, "For the candy in the bin below, there are 500 pieces of candy per kg." Us
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Calculate the molarity of each of the following commercial acid or base solutions: (a) 70.0 % HClO4, specific gravity 1.668, (b) 69.0 % HNO3, specific gravity 1.409, (c) 85.0 % H3 PO4, specific gravity 1.689, (d) 99.5 % CH3 COOH (acetic acid), specific gravity 1.051, (e) 28.0 % NH3, specific gravity 0.898 . (Assume density and specific gravity are equal within three significant figures.) | Numerade
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