FUNDAMENTALS G- Mixtures and Solutions

mixture

 not pure substances like compounds or elements. Their compositions may be varied. The chemical properties of the substances in the mixture are retained

heterogenous mixture

have component particles that are so large we can see and separate them (ie. sand + water)

homogenous mixtures

uniform mixtures that are so well mixed that the composition of the molecules is the same throughout.

solutions

solute and a solvent that are homogenous mixture

solvent

Determines the physical state of the solution

largest amt

solute

what’s being dissolved

molarity

moles of solute / L of solution  (mol/L)

dilution

the concentration of a solution is reduced by addition of a solvent

chemical reactions

are processes by which one or more substances are converted into other substances

stock solution dilutions

M₁V₁ = M₂V₂

determining moles of solute

moles of solute=molarity×volume of solution in liters