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Given two liters of .407 M KCl how many milliliters of this solution you should use to prepare 250.0 ml of .175M KCl
The synthesis of Amyl acetate by alcohol and anhydride, there are some chemicals be provided: Potassium carbonate, Calcium carbonate, Sodium sulfate
Calculate E for each chemical reaction that produces 943 kJ of heat but does no work on its surroundings.
Ammonia and hydrogen chloride gases react to form solid ammonium chloride. A 10.0 L reaction flask contains ammonia at 0.450 atm and 22°C, and 164 mL of hydrogen chloride gas at 7.50 atm and 271 K is introduced
The reaction 2NO (g)-> N2 (g) + O2 (g) has a H = 180.5 kJ. How much heat will be required to produce 44.8 L of NO by the reverse reaction?
Determine the enthalpy for the partial combustion of methane to carbon monoxide.
A certain rifle bullet has a mass of 9.81 g. Calculate the de Broglie wavelength of the bullet traveling at 1433 miles per hour.
Proteins rich in disulfide bonds often require longer incubation times at higher temperatures before they denature. Why?
What is the pH of a dilute 0.00336 M solution of formic acid? Formic acid is monoprotic with a Ka of 1.70 x 10-4. You should use the quadratic equation for this one because the solution is very dilute.
Separation of acetone from water by using MIBK - How much MIBK must be used if the final acetone concentration in the water-rich phase is 5 wt%?
If 18.5 mL of 0.800 M HCl solution are needed to neutralize 5.00 mL of a household ammonia solution, what is the molar concentration of the ammonia.
Calculate the maximum non-expansion work that can be done on the surroundings from the combustion per kilogram of H2(g) at constant pressure and 298.15K. If the H2 is oxidized in a fuel cell with maximum efficiency to drive an electric version
When 25g of magnesium reacts with 75g of hydrochloric acid it produces 95g of magnesium chloride and hydrogen gas.
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