Intro to Dilution LAB

solution

contains both solute and solvent

solute, solvent

the is___ dissolved into the ___

concentration

of a solution refers to how much of one component (usually solute) there is relative to the mount of the other component (solvent) or relative to total of solution

lower

a cup containing one teaspoon of dissolved sugar has a ____ sugar concentration than a cup containing 2 teaspoons of dissolved sugar

liquids

volvume per volume (v/v) is commonly used when both solute and solvent are ___

5% (v/v)

if you combine 5mL of ethyl alcohol with enouh water to make 100mL of solution, the concentration of the alcolhol is ___

5% (w/w)

if you dissolve 5g of table salt with enough water to make 100g of solution, the concentration of the salt is ___

5% (w/v)

if you dissolve 5g of table salt with enough water to make 100mL of solution, the concentration of the salt is ___

1

water weighs __g/mL or 100g/100mL

homogeneous

when the solute is unifromly distributed throughout the solvent, the solution is …

0.05

with one Liter of 5%(w/v) sugar solution- ever 1 mL sample will have the same sugar concentration, which would be __g of sugar

serial dilution

one solution is diluted to make another, which in turn is diluted to give a third, and so on

mole

the amount of a chemical substance that contains the Avagrado number (approx. 6.02 × 10²³) of particles

the molecular weight or formula weight of a chemical substance is the molecular (or formula) weight expressed as grams

mole

a __ of a substance is equal to its molecular weight in grams

molarity

symbolized by the letter M, expresses the concentration of a solute in solution in terms of the number of molesof that solute per liter of solution