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Air at 0°C and atmospheric pressure flows horizontally at a speed of 0.5 m/s through a collection chamber 4 m high and 20 m long. The air carries particles with a density of 1600kg/m3 . What is the minimum diameter of particles that will be collected in the chamber?
a weather balloon with a 2-meter diameter at ambient temperature holds 525 grams of helium. what type of electronic
if 1.500 g of solute that has a molar mass of 125.0 g were dissolved in 35.00 g of camphor, what would be the resulting freezing point of the solution?
Base was 2-aminobenzamide with a melting point of 111-114 Celsius, Neutral was Fluorene with a melting point of 114-116 Celsius.
Ethanol boils at a temperature of 78.29oC. What amount of energy, in joules, is necessary to heat to boiling and then completely vaporize a 16.5 gram sample of ethanol initially at 12oC
What is the percent hydrogen (H) by weight of a solution containing 53.5mL of CH3COCH3? The density of acetone is 0.788 g/mL
What word is used to describe a pathway that functions in both degradative and biosynthetic reactions
all ammonium compounds which contain an ammonium ion nh4 and a negative ion are thermally unstable.a. discuss two ways
Provide the chemical reaction that occurred when HCl was added. For this reactions use hydronium in place of HCl as that is the active acid. Show all lone pair electrons and formal charges. What does the amount of precipitate in each tube indicate..
Urea is an organic compound widely used as a fertilizer. its solubility in water allows it to be made into aqueous fertilizer solutions and applied to crops in a spray. what is the maximum number of water molecules that one urea molecule can hydrog..
Calculate the average absorbance and use this value for an absorbance point on your graph. Use the printed graph from above, find the average Absorbance of the unknown on the y-axis
Thirteen grams of titanium react with 60.0 g of bromine. How many grams of titanium(IV) bromide are produced, assuming 100% yield.
NH3 can react with BF3, forming NH3¾BF3. In this reaction, 1) NH3 acts as a Brønsted base, accepting a proton from the BF3 molecule. 2) NH3 acts as a Lewis base, donating a proton to the BF3 molecule
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