Need help Sloichiometry: Mole to Mass ProblemsMg +2HCI MgClh +1.H2How many grams of HCl are consumed by the reaction of 3.75 moles of magnesium?a.b. What is the mass in grams of Mg needed when 4.0 moles of HCl is used in the reaction?2. Acetylene gas (C2H2) is produced as a result of the following reaction.CaC2 ++ O'HIf 9.2 moles of Ca(OH)2 are produced in this reaction, how many grams of H2O are needed?C2H2 +Са(ОН)2a.b. How many grams of C2H2 would be formed with 3.20 moles of H2O?3. Acetylene gas, C2H2, is used in welding, produces an extremely hot flame when it burns in pure oxyge-according to the following reaction.2 C2H2(g) + 502(g) → 4CO2(g) + 2H2O(g)How many moles of water (H2O) are produçed when 25.0 grams of C2H2 burns completely?4.Mg +Fe2O3 →Fe +MgOHow many moles of iron, Fe, are produced with 25.0 grams of magnesium, Mg?5. Laughing gas (nitrous oxide, N2O) is sometimes used as an anesthetic in dentistry.NH4NO3 →N20+a. How many moles of NH4NO3 are required to produce 19.0g of N20?b. How many moles of water are produced with 75.0g of N20?

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Sloichiometry: Mole to Mass Problems Mg +2HCI → MgClz +2 H2 1. a. How many grams of HCl are consumed by the reaction of 3.75 moles of magnesium? D. What is the mass in grams of Mg needed when 4.0 moles of HCl is used in the reaction'?

Sloichiometry: Mole to Mass Problems Mg +2HCI → MgClz +2 H2 1. a. How many grams of HCl are consumed by the reaction of 3.75 moles of magnesium? D. What is the mass in grams of Mg needed when 4.0 moles of HCl is used in the reaction'?

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter3: Mass Relations In Chemistry; Stoichiometry

Section: Chapter Questions

Problem 66QAP: Chlorine and fluorine react to form gaseous chlorine trifluoride. Initially, 1.75 mol of chlorine...

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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

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Sloichiometry: Mole to Mass Problems
Mg +
2HCI MgClh +
1.
H2
How many grams of HCl are consumed by the reaction of 3.75 moles of magnesium?
a.
b. What is the mass in grams of Mg needed when 4.0 moles of HCl is used in the reaction?
2. Acetylene gas (C2H2) is produced as a result of the following reaction.
CaC2 +
+ O'H
If 9.2 moles of Ca(OH)2 are produced in this reaction, how many grams of H2O are needed?
C2H2 +
Са(ОН)2
a.
b. How many grams of C2H2 would be formed with 3.20 moles of H2O?
3. Acetylene gas, C2H2, is used in welding, produces an extremely hot flame when it burns in pure oxyge-
according to the following reaction.
2 C2H2(g) + 502(g) → 4CO2(g) + 2H2O(g)
How many moles of water (H2O) are produçed when 25.0 grams of C2H2 burns completely?
4.
Mg +
Fe2O3 →
Fe +
MgO
How many moles of iron, Fe, are produced with 25.0 grams of magnesium, Mg?
5. Laughing gas (nitrous oxide, N2O) is sometimes used as an anesthetic in dentistry.
NH4NO3 →
N20+
a. How many moles of NH4NO3 are required to produce 19.0g of N20?
b. How many moles of water are produced with 75.0g of N20?

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