2:32 PM Mon Oct 19Question 25 of 49SuDetermine the number of molecules of Cr2O3 that form when 1.34 x 10³|g of oxygen completely reacts according to the following equation:4Cr(s) +3 02(g) →2 Cr203(s)STARTING AMOUNTADD FACTORANSWERRESET*( )52.004.24 x 103152.0031.34 x 103 2.52 × 102532.0011.68 x 102523.78 x 10256.022 x 1023g Cr2O3g O2molecules Cr2O3mol Cr2O3g Crmol Crmol O2 Mon Oct 19令Question 22 of 49How many moles of H2SO4 are required to completely react with 7.20 mol of Alaccording to the balanced chemical reaction:2Al(s) +H2SO4(aq) → Al2(SO4)3(aq) +H2(g)STARTING AMOUNTADD FACTORANSWERRESET*( )27.,2026.982.0221.6342.1413.602.406.022 x 102310.898.08g H2SO4mol H2SO4g H2g Al2(SO4)3mol Alg Almol H2mol Al2(SO4)3

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Determine the number of molecules of Cr2O3 that form when 1.34 x 103 g of oxygen completely reacts according to the following equation: 4 Cr(s) + 3 02(g) → 2 Cr2O3(s)

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter4: Stoichiometry

Section: Chapter Questions

Problem 4.72PAE: 4.72 The picture shown depicts the species present at the start of a combustion reaction between...

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".

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