Half Lives
Not what you're looking for?
A first order reaction has a half-life of 157 seconds. How much time is required for the reactant to be reduced to 12.5% of its initial concentration?
Purchase this Solution
Solution Summary
This solution works with half lives to determine the time required to reach a certain percentage of its initial concentration.
Solution Preview
Since the reaction has a half-life of 157 seconds it means that each 157 seconds the ...
Purchase this Solution
Free BrainMass Quizzes
Functional groups in Organic Chemistry
You will be tested on the names of functional groups in Organic Chemistry. It is very important to know the functional groups to understand Organic reactions.
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.
General Chemistry - Classification of Matter
This test will assess your knowledge on the classification of matter which includes elements, compounds and mixtures.
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.