06/22
Unit 6: Factors affecting rates of
reaction
Why did I choose this method amongst all three methods?
I chose Alka Seltzer tablets practical, I chose this method because it is the easiest to understand how
temperature affects the rate of reaction and it is also very accessible, repeatable, and reliable. There
have also been a lot of people who have performed this experiment. Reaction rate experiment using
Alka seltzer tablets, water, ice, and a timer. It is a science experiment that is easy to follow and does
not require a lot of equipment and substances. This method is far better than the other two
methods as it is very explicit and repeatable.
Aim:
To test how the temperature of water (cold, warm, and hot) affects the rate of reaction at which an
Alka Seltzer tablet dissolves.
Hypothesis:
If the rate of reaction is proportional to the temperature of the water, the rate of reaction will be
faster if the water is warmer.
As the temperature rises, the number of atomic or molecular collisions between molecules
increases. The change in reaction rate with temperature, on the other hand, is not solely a function
of temperature. Increases in temperature have a predictable impact on reaction rate constants.
Limitations:
The water temperature cannot be higher than 90 C, therefore we cannot get the most accurate
result. The heat energy can be released in the atmosphere and the measuring would be not
accurate. For the experiment we need Alka Seltzer tablets that can be bought just by people that are
18+, therefore you need an ID to buy it, so the tablets are not in free access.
Variables:
Independent variable: Temperature of water
Dependent variable: Rate of reaction
Control Variables: Number of Alka Seltzer tablets, Exact temperature of water, Amount of water.
Risk assessment:
Use of glassware (beaker)
Hazards Risk Control Measures Training Emergency
Requirements Procedures
Cuts from The likelihood Physical: Glassware · Cuts and
shattered, of getting Glass in a vacuum should be safety is a burns should
sharp items or harmed (cut) encased in plastic or wire mesh standard be treated as
damaged glass. by shattered to avoid fragmentation. aspect of soon as
Not in the standard rubbish bins,
or shattering undergraduate possible.
but in specifically dedicated
Implosion after glass for an containers for broken glass. education. Broken glass
evacuation, inexperienced Training: Glassware used under Risks that are should not be
, mechanical individual is vacuum may require further still present attempted to
trauma, or high, with any training by Research The most be removed
tension results injury being Advisers/Supervisors common type from wounds.
in cuts from mild to P.P.E: Safety Glasses or a Face of injury in the
Shield should be used depending
flying glass. severe. School of · A First Aider
on the technique. Fitting tubing
Who can get to glass may require leather Chemistry is should only
By pressing injured? gloves with wrist protection or cuts from be called if
plastic tubing, The person to towel or tissue cushioning. broken glass you have a
teats, or rubber be wounded Operating Precautions or the misuse small cut or
bungs onto by Before use, check for cracks, of glass. It is bruise.
glass tubing, mishandling flaws, or blemishes. always
pipettes, glassware is Carry no glass in your pocket necessary to · "Assisting an
condensers, or the user, Never let a glass fall. exercise Injured
Lubricate glassware and soften
teats can break. while extreme Person" is the
plastic tubing with water or
anybody in caution. procedure to
glycerol. Intense force cracks
Pasteur the proximity glass. Adjust the hold to avoid a follow if
pipettes were is liable to be broken glass's sharp edge. Do not someone is
thrown away in hurt in the use paper towels. To remove seriously
regular trash case of recalcitrant tubing, use a sharp hurt. It is
cans. collapsing knife. found in
glass. Handle the hot glass with care "What to do
Burns from and store it until it cools. in case of".
heated glass. O-R-S-E Preserve ground glass
connections with grease. No
securing hot flasks. Remove a
Poisoning
frozen cork with heat.
because of cuts In this container, you can fix or
caused by dispose of shattered glass.
contaminated Broken glass from brooms.
glassware. Remove broken glass from a sink
with tongs.
Glass "sharps" cannot be thrown
in the trash.
Vacuum use
Prior to use, examine vacuum-
sensitive glassware.
To prevent fragmentation, tape
or plastic mesh should be used
on volumes greater than 1 litre.
Included are vacuum desiccators
and rotary evaporators. Using
Low Pressure or Vacuum (Risk
Assessment)
Glasses are frequently washed
with detergent. Using detergents
and solvents first, then a Risk
Assessment for harsher
processes like chromic acid.
Using chemicals to clean or dry is
risky.
Hot water
Risk Hazard Control Training Emergency
Measures requirements procedures
Unit 6: Factors affecting rates of
reaction
Why did I choose this method amongst all three methods?
I chose Alka Seltzer tablets practical, I chose this method because it is the easiest to understand how
temperature affects the rate of reaction and it is also very accessible, repeatable, and reliable. There
have also been a lot of people who have performed this experiment. Reaction rate experiment using
Alka seltzer tablets, water, ice, and a timer. It is a science experiment that is easy to follow and does
not require a lot of equipment and substances. This method is far better than the other two
methods as it is very explicit and repeatable.
Aim:
To test how the temperature of water (cold, warm, and hot) affects the rate of reaction at which an
Alka Seltzer tablet dissolves.
Hypothesis:
If the rate of reaction is proportional to the temperature of the water, the rate of reaction will be
faster if the water is warmer.
As the temperature rises, the number of atomic or molecular collisions between molecules
increases. The change in reaction rate with temperature, on the other hand, is not solely a function
of temperature. Increases in temperature have a predictable impact on reaction rate constants.
Limitations:
The water temperature cannot be higher than 90 C, therefore we cannot get the most accurate
result. The heat energy can be released in the atmosphere and the measuring would be not
accurate. For the experiment we need Alka Seltzer tablets that can be bought just by people that are
18+, therefore you need an ID to buy it, so the tablets are not in free access.
Variables:
Independent variable: Temperature of water
Dependent variable: Rate of reaction
Control Variables: Number of Alka Seltzer tablets, Exact temperature of water, Amount of water.
Risk assessment:
Use of glassware (beaker)
Hazards Risk Control Measures Training Emergency
Requirements Procedures
Cuts from The likelihood Physical: Glassware · Cuts and
shattered, of getting Glass in a vacuum should be safety is a burns should
sharp items or harmed (cut) encased in plastic or wire mesh standard be treated as
damaged glass. by shattered to avoid fragmentation. aspect of soon as
Not in the standard rubbish bins,
or shattering undergraduate possible.
but in specifically dedicated
Implosion after glass for an containers for broken glass. education. Broken glass
evacuation, inexperienced Training: Glassware used under Risks that are should not be
, mechanical individual is vacuum may require further still present attempted to
trauma, or high, with any training by Research The most be removed
tension results injury being Advisers/Supervisors common type from wounds.
in cuts from mild to P.P.E: Safety Glasses or a Face of injury in the
Shield should be used depending
flying glass. severe. School of · A First Aider
on the technique. Fitting tubing
Who can get to glass may require leather Chemistry is should only
By pressing injured? gloves with wrist protection or cuts from be called if
plastic tubing, The person to towel or tissue cushioning. broken glass you have a
teats, or rubber be wounded Operating Precautions or the misuse small cut or
bungs onto by Before use, check for cracks, of glass. It is bruise.
glass tubing, mishandling flaws, or blemishes. always
pipettes, glassware is Carry no glass in your pocket necessary to · "Assisting an
condensers, or the user, Never let a glass fall. exercise Injured
Lubricate glassware and soften
teats can break. while extreme Person" is the
plastic tubing with water or
anybody in caution. procedure to
glycerol. Intense force cracks
Pasteur the proximity glass. Adjust the hold to avoid a follow if
pipettes were is liable to be broken glass's sharp edge. Do not someone is
thrown away in hurt in the use paper towels. To remove seriously
regular trash case of recalcitrant tubing, use a sharp hurt. It is
cans. collapsing knife. found in
glass. Handle the hot glass with care "What to do
Burns from and store it until it cools. in case of".
heated glass. O-R-S-E Preserve ground glass
connections with grease. No
securing hot flasks. Remove a
Poisoning
frozen cork with heat.
because of cuts In this container, you can fix or
caused by dispose of shattered glass.
contaminated Broken glass from brooms.
glassware. Remove broken glass from a sink
with tongs.
Glass "sharps" cannot be thrown
in the trash.
Vacuum use
Prior to use, examine vacuum-
sensitive glassware.
To prevent fragmentation, tape
or plastic mesh should be used
on volumes greater than 1 litre.
Included are vacuum desiccators
and rotary evaporators. Using
Low Pressure or Vacuum (Risk
Assessment)
Glasses are frequently washed
with detergent. Using detergents
and solvents first, then a Risk
Assessment for harsher
processes like chromic acid.
Using chemicals to clean or dry is
risky.
Hot water
Risk Hazard Control Training Emergency
Measures requirements procedures
