If the complete combustion of an unknown mass of ethylene produces 225.54 g CO2, what mass of ethylene is combusted?C2H4(g) + 3 O2(g) → 2 CO2(g) + 2 H2O(g)Molar mass of CO2(g) = 44 g/molMolar mass of C2H4(g) = 28g/mol Limestone, Caco3, dissolves in muriatic acid, HCI, to form calcium chloride, carbon dioxide, and water.a. How many moles of HCl are required to dissolve 26.0 g of Caco3?b. What is the mass of water formed in part (a)?Molar Mass:Ca: 40.08 g/molC: 12.01 g/molO: 16.00 g/molH: 1.01 g/molCl: 35.45 g/mol Magnesium reacts with iodine gas at high temperatures to form magnesium iodide.A. What mass of magnesium iodide, MgI2, can be produced from the reaction of 5.15 g Mg and 50.0 g I2?B. What is the limiting reactant?MM of Mg = 24.31g/molMM of I2 = 253.81g/molMM of MgI2 = 278.12g/mol

There are many questions are given but I'm solving first one according to the guidelines of bartleby…

If the complete combustion of an unknown mass of ethylene produces 225.54 g CO2, what mass of ethylene is combusted? C2H4(g) + 3 O2(g) → 2 CO2(g) + 2 H2O(g) Molar mass of CO2(g) = 44 g/mol Molar mass of C2H4(g) = 28g/mol

If the complete combustion of an unknown mass of ethylene produces 225.54 g CO2, what mass of ethylene is combusted? C2H4(g) + 3 O2(g) → 2 CO2(g) + 2 H2O(g) Molar mass of CO2(g) = 44 g/mol Molar mass of C2H4(g) = 28g/mol

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter14: Mixtures And Solutions

Section: Chapter Questions

Problem 125A

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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".

Question

If the complete combustion of an unknown mass of ethylene produces 225.54 g CO2, what mass of ethylene is combusted?

C2H4(g) + 3 O2(g) → 2 CO2(g) + 2 H2O(g)

Molar mass of CO2(g) = 44 g/mol

Molar mass of C2H4(g) = 28g/mol

Limestone, Caco3, dissolves in muriatic acid, HCI, to form calcium chloride, carbon dioxide, and water.
a. How many moles of HCl are required to dissolve 26.0 g of Caco3?
b. What is the mass of water formed in part (a)?
Molar Mass:
Ca: 40.08 g/mol
C: 12.01 g/mol
O: 16.00 g/mol
H: 1.01 g/mol
Cl: 35.45 g/mol

Magnesium reacts with iodine gas at high temperatures to form magnesium iodide.
A. What mass of magnesium iodide, MgI2, can be produced from the reaction of 5.15 g Mg and 50.0 g I2?
B. What is the limiting reactant?
MM of Mg = 24.31g/mol
MM of I2 = 253.81g/mol
MM of MgI2 = 278.12g/mol

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