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Write balanced chemical equations and net ionic equations of KOH reacting with the following compounds (a) (NH4)2SO4, the reaction mixture is heated (b) Phenol, a weak acid, C6H5OH
Calculate how wide is the cloud of organisms at the time peak concentration takes place at the intake pipe.
How much energy (in kilojoules) is required to convert 225 mL of diethyl ether at its boiling point from liquid to vapor if its density is 0.7138 g/mL?
Calculate the freezing point of the following solutions, assuming complete dissociation. Part A= 0.114mK2S Part B=20.5g of CuCl2 in 401g water Part C=6.5% NaNO3 by mass
What is the minimum pressure in kPa that must be applied at 25 °C to obtain pure water by reverse osmosis from water that is 0.156 M in sodium chloride and 0.094 M in magnesium sulfate?
Calculate ΔH° for the reaction -> 2 K(s) + 2 H2O(l) 2 KOH(aq) + H2(g) A 4.85-g chunk of potassium is dropped into 1.06 kg water at 24.0°C.
calculate the average moles of ascobic acid in the pipetted sample used for titration d)Calculate the average moles of ascobic acid in the crushed tablet.
A chemist wanted to determine the concentration of a solution of lactic acid, HC3H5O3. She found that the pH of the solution was 2.59. What was the concentration of the solution.
Nitrogen and hydrogen gases react to form ammonia gas as follows: N2(g)+3H2(g)-->2NH3(g) At a certain temperature and pressure, 1.7 L of N2 reacts with 5.1 L of H2. If all of the N2 and H2 are consumed, what volume of NH3(g) is produced at the sam..
E85 fuel is a mixture of ethanol and gasoline. What mass in kilograms of E85 (d=0.758g/mL) can be contained in a 14.0 L gallon tank.
A mixture of gases with a pressure of 800.0 mm hg contains 60% nitrogne and 40% oxygen by volume. what is the partial pressure of oxygen in this mixture?
A total of sixteen grams of steam at the temperature of 120 degree Celsius is admitted to the system. Determine the phase composition and temperature at the time when equilibrium is reestablished?
Barium imparts a characteristic green color to a flame. The wavelength of this light is 551nm. Determine the energy involved in kj/mol.
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