Study Guide for Quiz #1
By Alexis Adornato
First Quiz
Wednesday, Sep 18, 2013, 01:45 PM
Pine Crest School, Saint Andrews Boulevard, Boca Raton, FL
Things that will be on it
2. Heating Baking Soda Lab
3. Volume Notes
4. Balance Notes
5. Box Questions 1-13 (omit #2)
Lab Format:
Your Name: Alexis Adornato
Date:
LaboratoryTitle/Name
I. Purpose:
II. Procedure:
III. Materials:
IV. Lab Safety:
V. Data and/or Observations:
VI. Experimental Errors:
VII. Conclusion:
VIII. Extra Question(s):
1. Reaction in a Bag Lab
-Red Liquid was Phenol Red
-Used as a PH indicator
-PH scale:
-Measures acidity
-goes from 0-14
-0-6 is acidic
-7 is neutral
-8-14 is alkaline
-Below 7 turns yellow
-Above 8 turns pink
-2 Solids
-A. was Calcium Chloride
-Mildly acidic
-Attracted to water (hydrotropic)
-Uses:
-Canned Veggies, Electrolytes, Flavors Pickles
-B. was Sodium Bicarbonate (baking soda)
-Not acidic
-Uses:
-Baking, toothpaste, laundry detergent, cat litter
2. Heating Baking Soda Lab
-At the bottom of the test tube the baking soda turned a brownish/black
-Condensation occurred at the top of the test tube from hot gas touching the cooler part of the test tube at the top and it turns back into liquid
-the water level in the water bottle is going down
-The gas was produced when the baking soda was heated
-The heated baking soda and the regular baking soda must be different from each other because when we added the same tea to both there was color difference
-Control Group: unheated baking soda
-Experimental group: heated baking soda
-Indicator: tea
-Variable: Something you try to measure
-Independent Variable: Causes a change in the dependent variable
-Dependent Variable: Color of the tea
-Control Factors:
-Same Type of Tea
-Same amount of tea
-Same temperature
-Same Stirring time
-Same size of test tube
3. Volume Notes
-Volume= (l)(w)(h)
-Standard Unit of Length=meter
-1 centimeter= 0.01 Meters
-Volume of Liquids
-use a graduated cylinder to measure volume
-Units=milliliters (ml) or cm3
-Read from bottom of the meniscus
4. Balance Notes
2. Always "zero" balance before each massing
-Push all rider to zero (left)
-Use adjustment knob if needed
3. Never Switch pans
4.Pick up balance by red bar only
5. Don't zero balance when you're done
5. Box Questions
Format
2. Fill in the blank
3. Multiple Choice
Email Mr. Leeds at:
Email: andrew.leeds@pinecrest.edu
Website: elearning.pinecrest.edu