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15
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What is PFF?
Protein â Free Filtrate
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15
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What is grab sample?
It is one sample taken at random and assumed to be representative
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15
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What do you call this tool and what do you use it for?
FUME HOODS - used when chemicals or solutions are to be evaporated
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15
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What do you call this tool and what do you use it for?
MEASURING PIPET - used for accurate measurements, especially for small volumes, if they are calibrated at the particular volume wanted
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15
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Why glass filters are not recommended for concentrated alkali solution?
because of high concentration the alkali will attack the glass filter and will destroy it
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What's the purpose of wash bottles in the laboratory?
to be used for quantitative transfer of precipitates and solutions and to wash precipitates
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What type of hood is often outfitted with high intensity UV lamps?
Biohazard hood
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thief
Give points!
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25
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fairy
Take points!
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25
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gift
Win 5 points!
Okay!
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banana
Go to last place!
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What do you call this tool and what do you use it for?
BURETS - used for the accurate delivery of a variable amount of solution. Its principal use is in titrations
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15
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How do you calibrate a pipet?
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What is an aliquot?
it is an analysis sample.
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15
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What are the two principal means of dissolving inorganic materials?
By adding: (1) hydrochloric acid (2) nitric acid as a strong oxidizing acid
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eraser
Reset score!
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gift
Win 20 points!
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shark
Other team loses 10 points!
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lifesaver
Give 5 points!
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15
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What do you call that process of converting nitrogen to ammonium sulfate?
Kjeldahl digestion or analysis
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monster
Reset all scores!
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rocket
Go to first place!
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rocket
Go to first place!
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baam
Lose 20 points!
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eraser
Reset score!
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fairy
Take points!
5
10
15
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25
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shark
Other team loses 20 points!
Okay!
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baam
Lose 10 points!
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