Purchase Solution

calculate ΔH°rxn from equations of reactions

Not what you're looking for?

Ask Custom Question

In the 1980s, there was an international agreement to destroy all stockpiles of mustard gas, ClCH2CH2SCH2CH2Cl. When this substance contacts the moisture in eyes, nasal passages, and skin, the −OH groups of water replace the Cl atoms and create high local concentrations of hydrochloric acid, which cause severe blistering and tissue destruction. Complete and balance the equation for this reaction, and calculate ΔH°rxn. (See this table for bond energies. Use the lowest possible coefficients. Omit states-of-matter in your answer.)

Purchase this Solution

Solution Summary

The expert calculates ΔH°rxn from equations of reactions. The table for bond energies are provided.

Solution Preview

Reaction of mustard gas with water follows (balanced):

2 H2O (l) + ClCH2CH2SCH2CH2Cl (g) --> HOCH2CH2SCH2CH2OH (g) + 2 HCl (aq)

To calculate ΔH°rxn we must first determine how many bonds (and what type of bonds) are being broken and formed.

Types of bonds broken: Number of bonds broken: Bond enthalpy (kJ/mol) Energy change (kJ/mol)
O-H ...

Purchase this Solution


Free BrainMass Quizzes
Thermochemistry

The quiz helps in revising basic concepts about thermochemistry.

Match Elements with their Symbols

Elements are provided: choose the matching one- or two-letter symbol for each element.

General Chemistry - Classification of Matter

This test will assess your knowledge on the classification of matter which includes elements, compounds and mixtures.

Organic Chemistry Naming: Alkanes

This is a quiz which is designed to assist students with learning the nomenclature used to identify organic compounds. This quiz focuses on the organic compounds called Alkanes.