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Q. Calculate how much heat is required to added or removed to convert 100.0 g of steam at 115 0C to liquid water at 65 0C?
Q. Zn reacts with hydrochloric acid (HCI) to produce zinc chloride and hydrogen gas. Explain how many moles of hydrochloric acid are required to react with 2.30 moles of Zinc.
Calculate How many mL of the HCl solution was required for the titration.
If a sample of sodium is dropped into a container of water the reaction is:
Find the pH solution & Hydronium ion concentration and What is the pH of a solution of 0.17 M acid and 0.81 M of its conjugate base if the pKa = 8.62?
Suppose .30 mol of Ammonia and .40 mol of oxygen are added to a 5L container. If Y mol of water is present at equilibrium, calculate the equilibrium concentration of oxygen?
To calculate the number of molecules of a gas using ideal gas law and Avogadro's number - How many ozone molecules are present in 1.0 L of air under these conditions?
How many gm of dry NH4Cl need to be combined to 2.30L of a 0.300M solution of NH3, to prepare a buffer solution of pH 8.85.
Determination of the partial pressures of the gases - Find the partial pressure of each of these gases in the final product mixture.
Find the amount of known substance present in the mixture and determine the mass of calcium carbonate present in original mixture.
Write an equation for the formation of an acetal from reaction of excess methanol with benzaldehyde in the presence of an acid catalyst.
Determine the boiling point of a 1.5m aqueous solution of fructose.
Multiple choice questions in free energy change and What is the free energy change in kJ/mole?
Determine the partial pressure and the total pressure using Dalton's law of partial pressures - Determine the total pressure of the mixture.
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