Experiment 4 Solution Preparation Flashcards
A homogeneous mixture of two or more substances with each substance retaining its own chemical identity
Solution
can be expressed in a number of ways
Solution
A solution in which water is the solvent
Aqueous solution
A solution in which a substance other than water is the solvent
Nonaqueous solution
a solution that contains less than the maximum amount of solute that can be dissolved under the conditions at which the solution exists.
Unsaturated
a solution that contains the maximum amount of solute that can be dissolved under the conditions at which the solution exists.
Saturated
an unstable solution that temporarily contains more dissolved solute than that present in a saturated solution.
Excess solute crystallizes out with time and the solution reverts to a saturated solution
Supersaturated
Formula
M1V1 = M2V2
process of reducing the concentration of a solution by increasing the amount of solvent
Dilution
Solution Preparation: Solid Solute
- ________
- ________ and ________ to correct vol flask
- ________ to the mark
Weigh
Dissolve and Transfer
Dilute
Preparation of NaOH Solution
- Calculate the mass (g) of NaOH needed.
mol NaOH =
mass NaOH =
MxV in L
mol NaOH x molar mass NaOH
Preparation of NaOH Solution
- Weigh using ___________
Top Loading Balance
Preparation of NaOH Solution
- _____ in enough (less than the desired V soln) amount of _____
Dissolve
Water
Preparation of NaOH Solution
- ______in volumetric flask then ______ to desired amount of solution.
Transfer
dilute
Preparation of HCl Solution
- Calculate the volume of HCl needed
Formula: ?
M1V1=M2V2
Preparation of HCl Solution
- Obtain the liquid using _________ and _________.
serological pipette and aspirator.
Preparation of HCl Solution
- Transfer the _______ into the volumetric flask containing small ______.
withdrawn acid
amount of water.
Preparation of HCl Solution
- Dilute to desired amount of _______.
Solution
Reminders: Add ____to ____
Acid to Water
Reminders: Observe proper reading measurement: for clear – lower_________ and upper for ________
meniscus
colored solutions
Reminders: Always ______properly
Label
Reminders: No spills ➔ _______
inaccuracy
Reminders: Make sure all washings were transferred into _________.
volumetric flask
Type I grade water, also known as
Ultrapower
it is the purest form of water to be produced.
It’s used for the most critical applications and advanced analytical procedures.
Type I grade water or Ultrapower
____________, also known as Ultrapower
Type I grade water
Type II water grade doesn’t have the same _______ of Type I, but still maintains high levels of _______
Pureness
Purity
Type II Water is a _________ for clinical analyzers as the ___ build-up is reduced with this water type.
good feed water
Calcium
Type III grade water, also known as
RO Water
____________, also known as RO water
Type III grade water
It is water produced through the purification technology reverseosmosis.
Type III grade water or RO water
It is a free of inorganic materials, suspended impurities and most organic contaminants.
Distilled Water
While there may be school laboratory applications where distilled water is required, in many applications, ____________ (aka demineralized) water will do just as well.
Deionized
___ like a water, is free of inorganic materials and most suspended contaminants.
Deionized Water
if you need organic-free water, buy a still or buy _____________
Distilled Water
