Ch.3 - Chemical ReactionsWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: How many molecules of H2S are required to form 79.0 g of sulfur according to the following reaction? Assume excess SO2. 2 H2S(g) + SO2(g) → 3 S(s) + 2 H2O(l)A) 1.48 × 1024 molecules H2SB) 2.44 × 1023 molecules H2SC) 5.06 × 1025 molecules H2SD) 3.17 × 1025 molecules H2SE) 9.89 × 1023 molecules H2S

Problem

How many molecules of H2S are required to form 79.0 g of sulfur according to the following reaction? Assume excess SO2

2 H2S(g) + SO2(g) → 3 S(s) + 2 H2O(l)

A) 1.48 × 1024 molecules H2S

B) 2.44 × 1023 molecules H2S

C) 5.06 × 1025 molecules H2S

D) 3.17 × 1025 molecules H2S

E) 9.89 × 1023 molecules H2S