How many g of antifreeze compound are necessary to prepare
The density of an antifreeze solution measured 1.12g/mL. The solution was a mixture of 30% water and 70% antifreeze compound. How many g of antifreeze compound are necessary to prepare 50.0mL of antifreeze solution?
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Ethyl acetoacetate will be reacting with trans-chalcone with 25 mLethanol and a pellet of NaOH under reflux for an hour. Then it willbe crystallized with water and chilled on an ice bath for 30minutes and then vacuum filtered.
The simple interest for certain saving account is jointly proportional to the time and the principal. Write an equation relating to interest,principal, and time
A uniform electric field with a magnitude of 680 kV/m permeates a certain volume of space with a total energy of 3.40 μJ. Explain your reasoning for the key steps when you determine the magnetic field strength over this same region of space tha
A gas is stores in a spherical tank (v=1.33 pie r^3 cubed) having a diameter of 10.0 ft. An unknown gas is contained in the tank with a density of 0.74 g/L.
A chemist wanted to mixed 6.0 mL of solution A (d=0.82 g/mL) with solution B (d=0.94) so that the final density of the solution was 0.88 g/ml.
You take a 30 ml sample of pond water and test it with yoursampling kit. You find that the water contains 20 ppm ofphosphates. You weight the sample and find that its mass is31 g. What is the mass of the phosphate in your sample?
The French TGV train and Japanese "bullet train" reach speeds of up to 180 mph with wheels moving on tracks about 1.5 m apart. At top speed moving perpendicular to the earth's magnetic field, what potential difference is induced across the tracks
Estimate the amount of the drug in the body 7 hours after the initial dose. What percentage of the drug still in the body is eliminated each hour?
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