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When caffeine is treated with HCl what solvent is the resulting compound more soluble in? Methylene chloride, chloroform, or water When carboxylic acid is treated with a base such as NaOH the resulting compound is more soluble in: Methylene chloride, chloroform, or water.
A mixture of MgCO3 and MgCO3·3H2O has a mass of 3.057 g. After heating to drive off all the water the mass is 2.790 g. What is the mass percent of MgCO3·3H2O in the mixture.
A piston has an external pressure of 8.00 torr How much work has been done if the cylinder goes from a volume of 0.130 liters to 0.450 liters.
A 29.0-g sample of water at 260. K is mixed with 48.0 g water at 300. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
In an experiment for measuring water hardness in a water sample, using Atomic Absorption Spectrophotometry, I obtained a value of 173.74 ppm hardness for my water sample.
Rate of reaction for 8H2S +4O2 -> 8H2O + S8, if started with 21.35g of H2S and 15.36g of O2. What is the limiting reactant and how much S8 can be produced.
What is the density of a substance if a 2.50mL sample has a mass of 0.880g at room temperature? ( show calculations) What is the specific gravity of the substance?
CH3OH burns in oxygen (O2) to from carbon dioxide (CO2) and water(H2O). Equal masses of ten grams of gaseous CH3OH and O2 are placed in an evacuated flask of five litres at the temperature of 25 degrees celsius.
How much energy is required to boil 45.5g of water at 100 degrees C at sea level? The molar heat of vaporization of water is 40.6 kJ/mol.
An incompressible fluid (p(ro)= const) is contained in an insulated cylinder fitted with a frictionless piston. Can energy as work be transferred to the fluid?
A .117 gram sample of a metal reacts with hydrpchloric acid to produce 36.3mL od dry hydrogen gas. what is the equivalent weight of this metal.
One of the treatments for gangrene and the bends, is hyperbaric oxygenation. This occurs in a chamber in which oxygen is used at higher-than-normal pressures.
A solution of ammonia and water contains 3.20×10^25 water molecules and 8.10×10^24 ammonia molecules. How many total hydrogen atoms are in this solution?
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