What is the best bottle to store water in to use for a lab sample and...
What is the best bottle to store water in to use for a lab sample and why? So, would it be better to store water (for a lab, and to keep it at its best quality and no new compounds mixing in with the water) in plastic, glass, or metal and why?
Homework Answers
To store water or water samples, glass bottles are best. Glass is completely nonreactive towards water. if we use plastic bottles then their is a possibility of leaching of monomers or oligomers or other additives from polymer to water during long time of storage. It depends on type of plastic. Storage in metal containers is even not good. metal ions may leach out into the water sample with time. most of the metals are oxidizable and during storage water may absorb CO2 from atmosphere and forms carbonic acid. due to somewhat lower pH it may react with metal or corrode metal with time slowly.
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What is the best bottle to store water in to use for a lab
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9 Pre-Lab Questions 1. Why can you use a calorimeter to study the exchange of heat? EXPERIMENT A ...
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PART B. HEAT OF SOLUTION REACTION Obtain a sample bottle with an unknown ionic salt. Record...
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PART B. HEAT OF SOLUTION REACTION Obtain a sample bottle with an unknown ionic salt. Record its identification let...
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Water bottle question you decide to take an international adventure to the locations shown below. During...
Water bottle question
you decide to take an international adventure to the locations shown below. During this trip yc rry a bottle of water with you made of cheap plastic so its walls are really flexible. (Guess you must not be flying with today's restrictions). you don't drink any of the water yet you notice the amount of liquid water in the bottle app ary depending on the location you are in even though you are at the same temperature....
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can someone explain to me what exactly is going on in this lab? like what does...
can
someone explain to me what exactly is going on in this lab? like
what does benzyltriphenylphosphonium chloride, trans-cinnamaldehyde
and water do ? why was NaOH used? we produced
1,4-diphenyl-1,3-butadiene
Procedure: Place 2.10 mmol benzyltriphenylphosphonium chloride (Calculate BEFORE you come to the lab and know how many grams you need!) and 2.00 mmol trans-cinnamaldehyde (Calculate BEFORE you come to the lab and know how many ml you need. Use the molecular weight and the density for your calculation.) in a...
9 Pre-Lab Questions 1. Why can you use a calorimeter to study the exchange of heat? EXPERIMENT A calorimeier is a device u s eol to measure hot of roactisn th lainer wn th vr meni o insulated wall's to prevent hret exchange he enviran 2. Why is specific heat an intensive property? energy at o particular temperature 'is the some Its 9uanhhy towhich no physical alimen sian is agsian eof Nomaler heuw mach alaminunh, Is abiliy to aborb heat...
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PART B. HEAT OF SOLUTION REACTION Obtain a sample bottle with an unknown ionic salt. Record its identification letter. Gently dry the inside of the calorimeter and weigh it. If the calorimeter is not dry, you will not be able to accurately find the mass of water in your calorimeter. Add about 50 mL of distilled water and weigh again. Measure the water's initial temperature. Use a plastic weighing "boat" set to zero on the balance and use it to...
Water bottle question
you decide to take an international adventure to the locations shown below. During this trip yc rry a bottle of water with you made of cheap plastic so its walls are really flexible. (Guess you must not be flying with today's restrictions). you don't drink any of the water yet you notice the amount of liquid water in the bottle app ary depending on the location you are in even though you are at the same temperature....
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can
someone explain to me what exactly is going on in this lab? like
what does benzyltriphenylphosphonium chloride, trans-cinnamaldehyde
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1,4-diphenyl-1,3-butadiene
Procedure: Place 2.10 mmol benzyltriphenylphosphonium chloride (Calculate BEFORE you come to the lab and know how many grams you need!) and 2.00 mmol trans-cinnamaldehyde (Calculate BEFORE you come to the lab and know how many ml you need. Use the molecular weight and the density for your calculation.) in a...
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