Question

Learning Task No. 1. Read the handout about preparations of solutions before
Answer the guide questions
SOLUTION PREPARATION
A solution is a homogeneous mixture created by dissolving one or more
solutes in a solvent. The chemical present in a smaller amount,
the solute, is
soluble in the solvent (the chemical present in a larger amount). Solutions with
accurately known concentrations can be referred to as standard (stock) solu-
tions
These solutions are bought directly from the manufacturer or formed by
dissolving the desired amount of solute into a volumetric flask of a specific vo-
lume. Stock solutions are frequently diluted to solutions of lesser concentration
for experimental use in the laboratory. Preparing a Standard Solution from a
Solid A solution of known concentration can be prepared from solids by two
similar methods. Although inherent errors exist with each of the methods, with
careful technique either will suffice for making solutions in General Chemistry
Laboratory
In the first method, the solid solute is weighed out on weighing paper or
in a small container and then transferred directly to a volumetric flask
(commonly called a "vol flask").
A funnel might be helpful when transferring the solid into the slim neck
of the vol flask. A small quantity of solvent is then added to the vol flask and the
contents are swirled gently until the substance is completely dissolved. More
solvent is added until the meniscus of the liquid reaches the calibration mark
on the neck of the vol flask (a process called "diluting to volume").
The vol flask is then capped and inverted several times until the contents
are mixed and completely dissolved. The disadvantage of this method is that
some of the weighed solid may adhere to the original container, weighing paper,
or funnel. Also, solid may be spilled when it is transferred into the slim neck of
the vol flask.
Guide Questions:
1. What is a solution?
2. What are the materials mentioned in the handout in preparing a solution us-
ing the first method?
3. Are these materials available at home?
4. Why is it that manufacturing companies have this special kind of instru-
ments in preparing solutions?
5. Can you still prepare solutions using available materials at home? Why?​

Answer 1

Answer:

material is the answer of this question