Writing Lab Reports

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Writing Lab Reports

• Using Pop Fizz Lab

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Writing Lab Reports

• Title page
• Title
• Introduction/Purpose
• Data/Observations
• Calculations and Questions
• Conclusion/Discussion

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Title Page

• Name
• Date
• Partner
• Title of Lab

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Mrs. HudginsSeptember 5,200_Partner

• Pop Fizz

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September 5, 200_

• Title Pop Fizz
• Introduction
• Alka-seltzer is used medically to alleviate
  upset stomachs by neutralizing the stomachs
  acid. Since Alka-seltzer tablets produce carbon
  dioxide, antacid tablets are used in this
  experiment. The reaction between Alka-seltzer and
  hydrochloric acid is given below.
• NaHCO3 HCl g H2O CO2 NaCl
• antacid stomach
• acid

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• The purpose of this experiment is to provide
  enough CO2 gas pressure to force the lid off of a
  film canister in a 40 second time frame.
• III. Data/Observations
• Chart 1A Pop Fizz

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• IV. Calculations and Questions
• Calculations-
• 1. none
• Questions-
• 1. What causes the lid to pop off?
• Carbon dioxide gas is the product that causes
  the lid to pop off.
• 2. What is the trick to timing your lid?
• In the first trial, measure an amount of water
  and tablet to be used and time how long it takes
  for the lid to pop off. Use the same amount and
  start the reaction at the appropriate time. The
  lid will then come off at the forty second mark.
• 3. etc.

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• V. Conclusion
• According to the reaction between Alka-seltzer
  and water, carbon dioxide gas is produced. If
  the timing of certain amounts of the antacid and
  water are used, the desired effect, the lid
  flying off, should be accomplished. The desired
  time limit is forty seconds.
• In the experiment, the Alka-seltzer tablet
  failed to produce enough CO2 to pop the lid off
  at the forty second mark.

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• Conclusion, contd.
• Shown in the data, one-fifth of a tablet and
• ¾ of the canister filled with water was used as
  the basis to timing the reaction. In the first
  and second trials, the lid popped off at 10
  seconds using the same measurements, as
  previously mentioned. However, during the final
  run, the lid came off at 23 seconds and the time
  limit was exceeded.
• The errors that could possibly explain the
  problem are not placing the lid on properly, not
  using the exact amount of materials, and/or
  improper timing of the reaction.
• With the proper ratio of Alka-seltzer tablet to
  water, the films canister could be set to pop
  off at the forty second mark.

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Data Entry in Journal

• Use a pen only
• Title of lab
• Date, Name, and Partner
• Use tables, charts, etc when necessary
• Write all observations and any noted errors
• Draw one line through mistakes

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September 5, 200_ Mrs.
Hudgins PartnerChart 1A

• Pop Fizz

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• Observations The tablet and water produced white
  and clear bubbles. A residue remained on the
  surface of the water after the reaction was
  complete.
• Lid is difficult to snap on. The time
• The canister was secured to the ring stand for
  support.
• Mrs. Hudgins 9/5/0_