We’ve added a new chemistry lesson to the Member’s Area:

Sect 13 – Molarity of a Solution

Some previous lessons:

Sect 1 – Calculating Molecular Mass and Formula Mass
Sect 2 – Avogadro’s Number and the Mole – Part 1
Sect 3 – Avogadro’s Number and the Mole – Part 2
Sect 4 – Mass Percent Composition
Sect 5 – Empirical Formula and Molecular Formula
Sect 6 – Balancing Chemical Reactions
Sect 7 – Balancing More Complicated Chemical Reactions
Sect 8 – Reaction Stoichiometry – Part 1
Sect 9 – Reaction Stoichiometry – Part 2
Sect 10 – Limiting Reactants – Part 1
Sect 11 – Limiting Reactants – part 2
Sect 12 – Calculating Percent Yield

Chemistry 1, Volume 2
Percent Yield in Chemical Reactions

In this section, we explore the concept of the percent yield in
a chemical reaction. We define the concept and then work several
examples that show how the calculate the percent yield of a reaction.

Chemistry 1, Volume 2 – Section 11 –
Limiting Reactants – Part 2

In this section, we continue to work problems that require the use
of the concept of the limiting reactant in a chemical reaction.

Physics 3, Volume 2 – Section 19 –
Magnetic Torque on a Current Loop (electric motors)

In this lesson, we examine the case where we have a current loop
immersed in a magnetic field. We show that this arrangement gives
rise to a torque (force that causes rotation about an axis). This is
the fundamental principle upon which all electric motors operate.

Chemistry 1, Vol 2 – Section 10 – Limiting Reactants – Part 1

In this section, we introduce the concept of the limiting reactant in a chemical
reaction. A limiting reactant is the reactant that is consumed first in the reaction,
thereby stopping the reaction. We work numerous example problems that show
how to find the limiting reactant in a reaction and use this info to calculate how
much product will be produced.

In this lesson, we work additional problems to calculate the force
that a magnetic field exerts on a wire that carries electric current
if that wire is placed in the field. Problems are worked with full
solutions to demonstrate the technique.