Where volume is in liters
Converting between mass and moles
Where mass is in grams and molecular weight is in grams per mole
Where both volumes are in the same units and both concentrations are in the same units.
Going from ratios to amounts
For a solution of a ratio of a:b:c where a, b, and c are coefficients for relative volumes, to calculate the volumes need for a solution of volume :
This is generalizeable for any amount of coefficients
Converting between g/mL and mol/mL
Calculate standard error of mean
where SE is the standard error, s is the sample standard deviation, and n is the sample size.
Given a number y, which is in log base b (), to undo the log and find x, use the following equation:
Other logarithm properties:
Base Change Formula: for any positive numbers b, x, and y.
Note: taking taking the average and then undoing the log is not mathematically equal to undoing the log then taking the average. That is to say: The right is the arithmetic average and the left is the geometric average which are not equivalent.