A sample of thallium(III)peroxide,Tl₂(O₂)₃,contains 2.45 mol of thallium(III)ions.The number of moles of peroxide ions in the sample is A)3.67 mol. B)1.63 mol. C)2.45 mol. D)7.35 mol. E)4.9361 mol.

Question

Quizplus · Accepted Answer

The formula for thallium(III) peroxide is Tl2O3, indicating each formula unit contains 2 thallium ions. If there are 2.45 moles of thallium(III) ions, then there are 2.45 moles / 2 = 1.225 moles of Tl2O3. Since each formula unit of Tl2O3 contains 3 oxygen atoms, and peroxide ions (O2^2-) consist of 2 oxygen atoms, the number of moles of peroxide ions is (1.225 moles of Tl2O3) * (3/2) = 1.8375 moles, which rounds to 1.84 moles, but since this option is not available and there seems to be a misunderstanding in the calculation or the interpretation of the formula, the correct approach based on the given options would be to directly relate the thallium ions to peroxide ions in a 1:1.5 ratio, leading to 2.45 * 1.5 = 3.675, which is closest to option A, 3.67 mol. This suggests a misunderstanding in the initial explanation, and the correct calculation directly relates to the stoichiometry provided in the options.

A Sample of Thallium(III)peroxide,Tl2(O2)3,contains 2

A Sample of Thallium(III)peroxide,Tl₂(O₂)₃,contains 2