a) What is the simplest formula of a compound if a sample of the compound contains 0.273 mol X, 0.819 mol Y, and 0.546 mol Z? b) How many moles of Z would be in a sample that contained 0.609 mol X?

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Q: At 15 °C, the value of Kw is 4.5 x 10-15. What is the equilibrium concentration of OH- at this…

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Q: 102 for the reaction given below. H2(g) + F2(g)  2 HF(g) (a) Calculate the concentrations of all…

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Q: Sodium bicarbonate gives solutions that are slightly alkaline (approximately pH 8.3), and similar…

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Q: 1) Identify the situations below: a) 200.0 mL of 0.10 M HClO2 is added to 100.0 Moles of Acid Strong…

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Q: O.

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Q: What is the full equation (not the net ionic equation) for the chemical reaction of Fe(NO3)3 plus…

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Q: An iron–sulfur protein in Complex III donates an electron to cytochrome c1. The reduction…

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Q: Calculate the molar mass of formaldehyde CH2O and C6H12O6.

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Q: An equilibrium mixture is 0.146 M NOBr, 0.363 M NO, and 0.321 M Br2. (a) What is the value of Kc…

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Q: What is the mass in grams of Na1 (22.99 g/mol) in 25.0 g of Na2SO4 (142.0 g/mol)?

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Q: c) L A e) Br b) d) f) H CH₂CH₂ A C(CH3)3 a H OH

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Q: Consider the graph below. Percent NaHCO, reacted 110.0 100.0 90.0 80.0 70.0 60.0 % NaHCO3 reacted vs…

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Q: How many elimination products can form in the following reaction? ж оооо 3 КОСН3 CH3OH

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.