What's the protocol for making 200mL of 15% (w/v) aqueous solution? Thanks a bunch in advance!
2 Answers
Dissolve
Explanation:
Determine the mass of solute required to make
Plug in known values.
Divide both sides by
Simplify.
Multiply both sides by
Multiply the percentage by the volume to get the necessary mass of solute.
Explanation:
When making a solution of a specified concentration. The units of the concentration are very important. Normally, the percentages labeled on day-to-day grocery products such as vinegar or rubbing alcohol are in mass (in grams) over volume (in milliliters). Concentrations, in general, can be expressed in many different ways making the organization and consistency of the used units very important. Assuming the concentration of your solution is in grams over milliliters, the necessary grams of solute would be 30 grams.
The basic formula for concentrations is as follows and can be manipulated to calculate needed quantities.