An element X has five major isotopes, which are listed below along with their abundances. Calculate the average atomic mass, and identify the element.
Answer to relevant QuestionsAscorbic acid, or vitamin C(C6H8O6), is an essential vitamin. It cannot be stored by the body and must be present in the diet. What is the molar mass of ascorbic acid? Vitamin C tablets are taken as a dietary supplement. If ...What amount (moles) is represented by each of these samples? a. 20.0 mg caffeine, C8H10N4O2 b. 2.72 × 1021 molecules of ethanol, C2H5OH c. 1.50 g of dry ice, CO2 The stable isotopes of iron are 54Fe, 56Fe, 57Fe, and 58Fe. The mass spectrum of iron looks like the following: Express the composition of each of the following com-pounds as the mass percent of its elements. a. formaldehyde, CH2O b. glucose, C6H12O6 c. acetic acid, HC2H3O2 Considering your answers, which type of formula— empirical ...Determine the molecular formula of a compound that contains 26.7% P, 12.1% N, and 61.2% Cl, and has a molar mass of 580 g/ mol.
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