How many moles of Cu are in 1.48 × 1025 Cu atoms?

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Prof. Carmelo Hilpert · Accepted Answer

1 mole 6.02 x 10²³ atoms( moles Cu) 1.48 x 10²⁵ atomsmoles Cu =  ( 1.48 x 10²⁵ ) x 1 / 6.02 x 10²³moles Cu = 1.48 x 10²⁵ / 6.02 x 10²³= 24.58 moles of Cu hope this helps!

Prof. Carmelo Hilpert · Answer

1.48 * 1021 number of molecules of pentane = 0.0002458 molGiven data:Number of molecules of pentane = 1.48 * 1021Number of moles = ? Solution:1 mole = 6.02 × 1023 molecules.If1 molecule = 1/6.02 × 1023So1.48 × 1021 molecules = (1/6.02 × 1023) × 1.48 × 1021                                     = 2.458 × 10-3 mol                                     = 0.0002458 molSo there are 0.000245 moles of pentane, if the number of molecules are 1.48 * 1021. Because 1 mole mole contain Avogadro's number of molecules.Which is equal to 6.02 × 1023 molecules.

Prof. Carmelo Hilpert · Answer

multiply the number of each atom with its molecular mass. (see the periodic table)5*12 + 12*1 = 72 gram per mole.Or more accurately: 5*12.01078 + 12*1.007947 = 72.149264 g/mole

Prof. Carmelo Hilpert · Answer

24.6 mol CuGeneral Formulas and Concepts:MathPre-AlgebraOrder of Operations: BPEMDASBracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to RightChemistryAtomic StructureMolesAvogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.StoichiometryUsing Dimensional AnalysisExplanation:Step 1: Define [Given] 1.48 × 10²⁵ atoms Cu[Solve] moles CuStep 2: Identify ConversionsAvogadro's NumberStep 3: Convert[DA] Set up:                                                                                                     [DA] Divide [Cancel out units]:                                                                       Step 4: CheckFollow sig fig rules and round. We are given 3 sig figs.24.5766 mol Cu ≈ 24.6 mol Cu

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How many moles of Cu are in 1.48 × 1025 Cu atoms?

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