Significant Figures | Famous Chemists | In the Lab | Common Mistakes | UVA's Black Book |
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100What is 2?
The number of significant figures in 0.030 m
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100What are molecules?
Although He is a smaller molecule than Ne, there are, according to Avogradro, just as many of these in a 1.0 L vessel if conditions are equal?
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100What is heat loss?
It is the most common error source associated with a styrofoam calorimeter.
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100What is 3?
The coefficient in front of chloride when writing an ionic equation for AlCl3
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100What is soil?
Geosmin is one of the compounds that gives this outdoor material its characteristic odor thanks to the filamentous bacteria that make it their home
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200What is 8.312 L*kPa/K/mole?
R with the correct number of significant figures 101.3*22.414/1.000/273.15
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200What is enthalpy?
Hess discovered that the pathway for a reaction does not affect the overall value of this quantity
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200What is 2?
It is the number of decimals that should be reported when using a standard 50.00 ml burette.
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200What is activation energy?
It's what's small in a reaction profile for a spontaneous process?
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200What are soap and water?
These 2 common bathroom materials can be used to wash off sarin, the poison used in the Iran-Iraq war and in Japanese subway attacks.
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300What is 1.43 g?(when only adding or subtracting, we go by the least number of decimal places)
The sum of 0.20 g and 1.23 g with the correct number of significant figures.
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300What is temperature?
Boyle's Law, P1Vi=P2V2 only applies if the ideal gas' number of moles and this other measurement are constant.
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300What is a titration or neutralization?
It's how the concentration of an acid can be obtained in the lab without using pH.
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300What is surface area?
The rate factor that causes twigs to burn faster than an equal mass of logs.
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300What is caffeine?
Guanine, the DNA base, is chemically related to this common breakfast molecule
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400What is 5 +/-1? ( only 20% error, as opposed to 33%)
Between 0.0003 +/- 0.0001 and 5 +/-1, the measurement that is more accurate?
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400Who is Lavoisier?
This man who was eventually guillotined was the father of modern chemistry
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400What is "balance the pressure"?
Aside from cooling, what needs to be done before recording the volume of hydrogen from a gas burette.
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400What is 1.5?
DAILY DOUBLE (bet to up as much as you have)How much faster two halves of a sphere react compare to an intact one?
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400What is hydrogen?
5.8 X 10-22 seconds elapse when light travels across the diameter of this nucleus
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500What is 1?
The number of decimals that a typical high school thermometer can be read to?
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500What is hydrogen bonding?
It is the type of bonding that Crick and Watson realized attracted adenine to thymine and guanine to cytosine in DNA.
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500What is oxygen?
The atmospheric percentage of this gas can be obtained by inverting a test tube with acidified iron in water.
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500What is spoils faster?
What happens to wine if an opened bottle is placed on its side.
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500What is aspirin (acetylsalicylic acid)?
DAILY DOUBLE (bet to up as much as you have)This common drug inhibits a COX enzyme, preventing the formation of prostaglandins, reducing inflammation but also removing the stomach's protection against acid.
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