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Anacin is composed of acetysalicylic acid and caffeine. using the principles of active extraction, show by use of flow chart how you would separate acetylsalicylic acid from caffiene in their nonpolar forms. There is no need to perform sublimation or recrystallization.
The problem states that 4.36g of an unknown alkali metal hydroxide is dissolved into 100.0 ml of water. It is then titrated with 2.50 M HCl using an acid-base indicator. The equivalence point is 17.0 ml of HCl.
If there are 1.8 million people served by this water and each person uses 750 L of water a day, how many kilograms of sodium hypochlorite must be added to the water supply each week to maintain the 1.00ppm chloride level
calculate the volume of 6 mnaoh necessary to react completely with 10.0 mmol of methylsalicylate. how much of the 6 m
a 325 ml sample of solution contains 25.3 grams of cacl2. calculate the molar concentration of cl- in this
An open flask sitting in a lab fridge looks empty, but we know that actually it is filled with a mixture of gases called air. If the flask volume is 4.00 L, and the air is at standard temperature and pressure,
What happens when you mix Calcium Nitrate and Sodium Carbonate? What is the precipitate it forms?
Draw the electron-dot formula for each of the following molecules or ions: a) HCCH (ethyne); b) CS2 (C is the central atom); c) NO^+
a sample of ideal gas is in a sealed container. the pressure of the gas is 405 torr and the temperature is 1 degree
Calculate the mass deficiency in amu, binding enery in J/atom, and binding energy in MeV/nucleon for zinc-64, with an actual mass of 63.9291 amu.
If the symbol X represents a central atom, Y represents outer atoms, and Z represents lone pairs on the central atom, the structure. Classify these structures by the hybridization of the central atom.
A 4.80 g nugget of pure gold absorbed 298 J of heat. What was the final temperature of the gold if the initial temperature was 24.0°C? The specific heat of gold is 0.129 J/(g·°C).
What is the volume in mL of 0.833 M HCl(aq) needed to reach halfway to the equivalence (stoichiometric) point in the titration of 23.5 mL of 0.270 M ethylamine
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