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A jet of water with a velocity v1 striking a vane(45 degrees) that is moving with a velocity, vo. Determine the forces exerted by the vane on the water if v1 = 20 m/s and v o = 8 m/s. The jet is 50 mm in diameter.
Which of the following reagents could be used to separate the two anions in a solution of sodium sulfide and sodium acetate. Select all that apply.
Four liters of water are equilibrated with a gas mixture containing carbon dioxide at a partial pressure of .3 atm. Henry's law constant for H2CO3* solubility is 2.0 g/L-atm.
an experiment requires 42.0 of ethylene glycol a liquid whose density is 1.114 . rather than weigh the sample on a
Calculate the concentration of iron (II) chloride contaminant in the original groundwater sample. Round your answer to significant digits.
the following factors controlling the synthesis of acetyl CoA in muscle and liver include all of the following EXCEPT: a. a high carbohydrate meal will influence the movement of fatty acids across the cell membrane by activating a cell membrane car..
You want to convert 5 mL of 3-methyl-2-butanol to 3-methyl-2-butene by an acid catalyzed dehydration. In order to finalize the experimental details, you look up the physical constants in the CRC Handbook and find the following data regarding boili..
given the pk for acetic acid is 4.76. suppose that we dissolve a mole of this weak acid in 10l of water. find the ph of
Write equations showing how each of the following weak bases ionizes water to form OH- a) HCO3- b) CH3NH2 Identify all of the phases in the answer (ex: NH3 = NH3(aq)+H2O(l) NH4+(aq)+OH-(aq))
The presence of a carboxyl band near 1640 cm-1 and two bands near 3000 cm-1 is good evidence of an alcohol B) The presence of a sharp, medium intensity band near 2720 cm-1 and a strong carbonyl band near 1700 cm-1 is good evidence of an alcohol
What is the pH of a dilute 0.00336 M solution of formic acid? Formic acid is monoprotic with a Ka of 1.70 x 10-4. You should use the quadratic equation for this one because the solution is very dilute.
A biochemical engineer isolates a bacterial gene fragment and dissolves a 13.1 mg sample of the material in enough water to make 39.3 mL of solution. The osmotic pressure of the solution is 0.340 torr at 25°C.
Calculate the amount of heat that must be absorbed by 10.0 g of ice at -20°C to convert it to liquid water at 60.0°C. Given: Specific heat (ice) = 2.1 J/g·°C Specific heat (water) = 4.18 J/g·°C ?Hfus = 6.0 kJ/mol A) 420 J B) 2,900 J C) 6,300 J D) ..
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