I'm having some trouble on my homework and could really use some helpSee attached: Question 32How many moles of oxygen gas are required to react with 9 moles of acetylene (C2H2) in the given equation?2 CH2 + 5 O2(g)→4 CO2 + 2 H200.4 molesO 4.5 moles9 molesO'18 molesO 22.5 molesQuestion 33The correct formula for a nitrate ion isO NO-O NO,+O NO3O NO,2-O NO2-Question 34Calculate the number of oxygen atoms in 45.0 g of Co2(SO4)3 (molar mass of Co2(SO4)3=405.8 g/mole).O 8.01 x 1023 atomsO 2.67 x 1023atomsO 12.0 atomsO 6.68 x 1022 atomsO 1.07 x 1024atoms

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How many moles of oxygen gas are required to react with 9 moles of acetylene (C2H2) in the given equation? 2 C2H2+5 O2(g)→4 CO2+2 H20 O 0.4 moles O 4.5 moles O 9 moles

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter5: Stoichiometry

Section: Chapter Questions

Problem 10ALQ

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Concept explainers

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".

Question

I'm having some trouble on my homework and could really use some help

See attached:

Question 32
How many moles of oxygen gas are required to react with 9 moles of acetylene (C2H2) in the given equation?
2 CH2 + 5 O2(g)→4 CO2 + 2 H20
0.4 moles
O 4.5 moles
9 moles
O'18 moles
O 22.5 moles
Question 33
The correct formula for a nitrate ion is
O NO-
O NO,+
O NO3
O NO,2-
O NO2-
Question 34
Calculate the number of oxygen atoms in 45.0 g of Co2(SO4)3 (molar mass of Co2(SO4)3=405.8 g/mole).
O 8.01 x 1023 atoms
O 2.67 x 1023
atoms
O 12.0 atoms
O 6.68 x 1022 atoms
O 1.07 x 1024
atoms

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