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How many grams of CaCl2 are needed to make 968.1 g of a solution that is 35.5% (m/m) calcium chloride in water? (Note that m/m has the same meaning as w/w.)
How many grams of water are needed to make this solution?
How many double bonds are present in the "best" resonance structure of the phosphate ion?
a pH meter measures the concentration of hydronium ions, H3O+ in solution through the creation of a concentration differential between a standard hydrogen half cell inside the pH probe and the concentration of hydronium ions outside the probe
Calculate the heat energy released when 14.1 g of liquid mercury at 25.00 C is converted to solid mercury at its melting point. Constants for mercury at 1 atm
salicylic acid reacts with methanol to produce oil of wintergreen and water. If water is added to the solution, a precipitate is formed. identify the precipitate and explain why it is formed.
Explain the meaning of the term condensation reaction in organic chemistry. 3.) explain how you would show experimentally that 2 particular organic compounds were optical isomers of each other.
At a total air pressure of 2.78 and a temperature of 25.0 , what is the solubility of in a diver's blood? [Use the value of the Henry's law constant calculated in Part A]
How many kilograms of sodium fluoride would be needed to treat a 8.00 x 10^7 gal reservoir
A chlorine atom can occupy one of the nine possible sites. When a bromine is added to the system it can occupy one of hte eight sites not already occupied by the chlorine
when 0.120 mol of carbonis burned in a closed vessel with 6.90g of oxygen. how many grams of carbon dioxide can form??
A patient weighs 165 pounds and is to receive a drug at a dosage of 45.0 mg per kg of body weight. The drug is supplied as a solution that contains 25 mg of drug per mL of solution. How many mL of the drug should the patient receive?
The atmospheric sulfur dioxide concentration over a certain region is 0.12 ppm by volume. Calculate the pH of the rainwater due to this pollutant. Assume the dissolution of SO2 does not affect its pressure.
the density of benzene at 15 degrees C is 0.8787g/ml.calculate the mass of 0.1550L of benzene at this temp.
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