Titration and calibration
Procedure and laboratory safety
Alexa Morales Mead
Titration is used to find and determine the concentration of an unknown chemical or
to make a neutralization reaction this is classed as an analysis as we have a solution
of a known concentration which is then used in a practical to find and state the
concentration of an unknown solution this known substance is called a titrant and
the unknown solution is called an analyte and to determine the end point an
indicator must be used as results are a lot clearer and more accurate this way, these
are the three steps we completed for this practical which completed full titration
What am I going to do in my assignment?
In this assignment I will be completing a titration and standardization of a solution in
the first section of this practical I will be preparing a standardized solution using
sodium carbonate and distilled water in this part I will also be doing a calibration of
all equipment used for this part of the practical then in p2 i will be completing my
first titration using my made solution and giving an evaluation and calculation and in
p3 I will be completing my second titration with a different acid and completing an
evaluation and calculation.
, These are the three titles of each part:
p1-preparation of a standard solution
p2-standardization of an acid
p3a-titration of sodium hydroxide with hydrochloric acid with an indicator being
used.
However, before you start any practical a risk assessment must be taken into account so
checking any obstruction or any things such as bags, coats, pens, paper etc. is not in the
way or near the practical is vital and then ensuring you have the proper protective gear on
e.g., lab coat gloves if necessarily and lab goggles is imperative also ensuring that it is strict
no messing is also a big factor as if a student is waving flask around or not carefully reading
instructions practical's will be messed up easily and students could cause harm to
themselves or others.
Sodium carbonate safety hazards and precautions p1
For the first step (p1)- preparation of a standard solution-, we do this because we need a
base which must be a solution in order to carry out titration if we do not have a proper
base then the reaction will not be neutralization.
The first step is that I needed to clean the weighing scale (this is because the
scale doesn’t need a full calibration as it only needed cleaning and resetting to fit
with how I would complete my practical ) then for the weighing boat, I was
supposed to complete two other results however due to human error on my
behalf I only measured mass of weighing boat and mass of solid that was
transferred which can be represented in the table below.
Then I aimed to measure 1.30g of sodium carbonate however again the accuracy
was depleted due to human error, so I measured 1.297 g of the anhydrous
sodium carbonate (anhydrous meaning a substance containing no water)
If I would have included this table in my work with actual results for mass of boat
with sodium carbonate and then the boat after, it would have been more
accurate however I can now use this in my evaluation as a point which may have
caused error or depleted my accuracy of it all. Then I transferred the measured
mass of sodium carbonate to a large beaker and precisely record the
measurement of mass to ensure results are as accurate as possible.
Procedure and laboratory safety
Alexa Morales Mead
Titration is used to find and determine the concentration of an unknown chemical or
to make a neutralization reaction this is classed as an analysis as we have a solution
of a known concentration which is then used in a practical to find and state the
concentration of an unknown solution this known substance is called a titrant and
the unknown solution is called an analyte and to determine the end point an
indicator must be used as results are a lot clearer and more accurate this way, these
are the three steps we completed for this practical which completed full titration
What am I going to do in my assignment?
In this assignment I will be completing a titration and standardization of a solution in
the first section of this practical I will be preparing a standardized solution using
sodium carbonate and distilled water in this part I will also be doing a calibration of
all equipment used for this part of the practical then in p2 i will be completing my
first titration using my made solution and giving an evaluation and calculation and in
p3 I will be completing my second titration with a different acid and completing an
evaluation and calculation.
, These are the three titles of each part:
p1-preparation of a standard solution
p2-standardization of an acid
p3a-titration of sodium hydroxide with hydrochloric acid with an indicator being
used.
However, before you start any practical a risk assessment must be taken into account so
checking any obstruction or any things such as bags, coats, pens, paper etc. is not in the
way or near the practical is vital and then ensuring you have the proper protective gear on
e.g., lab coat gloves if necessarily and lab goggles is imperative also ensuring that it is strict
no messing is also a big factor as if a student is waving flask around or not carefully reading
instructions practical's will be messed up easily and students could cause harm to
themselves or others.
Sodium carbonate safety hazards and precautions p1
For the first step (p1)- preparation of a standard solution-, we do this because we need a
base which must be a solution in order to carry out titration if we do not have a proper
base then the reaction will not be neutralization.
The first step is that I needed to clean the weighing scale (this is because the
scale doesn’t need a full calibration as it only needed cleaning and resetting to fit
with how I would complete my practical ) then for the weighing boat, I was
supposed to complete two other results however due to human error on my
behalf I only measured mass of weighing boat and mass of solid that was
transferred which can be represented in the table below.
Then I aimed to measure 1.30g of sodium carbonate however again the accuracy
was depleted due to human error, so I measured 1.297 g of the anhydrous
sodium carbonate (anhydrous meaning a substance containing no water)
If I would have included this table in my work with actual results for mass of boat
with sodium carbonate and then the boat after, it would have been more
accurate however I can now use this in my evaluation as a point which may have
caused error or depleted my accuracy of it all. Then I transferred the measured
mass of sodium carbonate to a large beaker and precisely record the
measurement of mass to ensure results are as accurate as possible.
