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Question 1: What would you do if you spilled a small amount of hydrochloric acid on your hand?
Question 2: Describe a possible danger than can occur if you put food, soda, coffee, pencil erasers, etc. in your mouth in while conducting your chemistry experiments?
Question 3: What is Green Chemistry?
Calculate the overall relative standard deviation, the relative standard deviation of the method, and the relative standard deviation of the sampling process.
in a 100 ml sample of a buffer solution the propanic acidconcentration is 0.50 molar and the sodium propanoate
Calculate the volume of hexane that you need at minimum, if you want to extract at least 95% of the total 1,2,4-TCB present in the water sample
Question- Quantitatively describes an experiment to determine the internuclear distance of a HD molecule (length of the hydrogen deuterium bond) and describe why.
If 145 grams of potassium nitrate were added to water to make 1,500 mL of solution, what would be the molarity of the resulting solution?
considering the given reaction h2 g l2 g ltgt 2 hl g wherenbsp k 1.00 x 102 at a particular temperature in an
At what temperature would a 1.80 m NaCl solution freeze, given that the van't Hoff factor for NaCl is 1.9? Kf for water is 1.86 degrees C/m. answer in degrees C
d. If you were measuring the 5-day BOD in the lab, how many mL of this solution would you add to a 300 mL BOD bottle to ensure that the final DO doesn't drop below 1 ppm? Assume that the initial DO is 8.26 ppm. (35.4 mL)
Assuming that the temperature remains constant, to what volume of helium will the balloon expand when it rises to an altitude where the pressure is only 50.0 kPa.
(a) When 36.0 g H2O are mixed with 67.0 g Fe, which is the limiting reagent? (b) What mass in grams of black iron oxide is produced?
Calculate the heat energy released when 14.1 g of liquid mercury at 25.00 C is converted to solid mercury at its melting point. Constants for mercury at 1 atm
Select a phospholipid and use it to illustrate the action of phospholipase A2 and discuss the structural ramifications of this reaction on the membrane.
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