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A solution is made by dissolving 3.35 grams of an unknown salt in 150 mL of water at 22.5 deg C, and the temperature of the water rose to 23.81 deg C. Addition of silver nitrate solution results in a precipitate. Assuming that the heat capacity of the solution is the same as pure water, use enthalpies of solution and solubility rules to identify the salt.
The design calls for reheating the liquid after the temperature has dropped to seventy degree Celsius the determine about how many stags and how many heaters are required for this process?
Determine the pH of the solution after 1.00 mL of 2.00 M HCl is added to the 100.0 mL solution.
Calculate the specific rotation of the compound. An aqueous solution containing 7.33 g of an optically pure compound was diluted to 800.0 mL with water and placed in a polarimeter tube 15.0 cm lon
How many grams of Au are there in the whole ocean? With a 60% recovery possible, how many liters of seawater must be processed for gold to obtain 1 kg of that metal?
assume that the pressure in the bottle was 1.5 atm, the bottle had a headspace of 20 mL, and the headspace contained 90% CO2. carbonate species and dissociation products of water.
What is the predicted pH of the following: 0.1M HCl, 0.01M HCl, 0.001M HCl, 0.1M HC2H202, 0.1 M HC2H3O2, 0.1 M NH4Cl, deonized water
How would you write a balanced chemical equation using structural formulas to show how acetic acid reacts weakly with water to transfer a proton and produce a hydronium and an acidic ion?
Covert the EU Nitrate standard of 50ppm to its nitrogen content alone. Is the EU standard more or less stringent than the United States regulatory limit
Calculate the molar solubility of CaCO3 ( Ksp = 4.5*10-9) neglecting the acid-base character
How much heat (in Joules) is gained by the water where a chemical reaction takes place in 100 mL aqueous solution and has a temperature increase of 14C? [hint: ignore any effects by the calorimeter]
A particular diatomic molecule which contains H exhibits a 16.95 cm^-1 spacing between its rotational lines and bond length of 141.5 picometers. Determine the mass (in amu) of the unknown atom in the molecule.
A 25.0g sample of nitrogen (N2) has a volume of 50.0L and a pressure of 630.0 mmHg. What is the temperature of the gas.
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