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A beaker contains 50.0mL of 1.902 M solution of diprotic acid. How many grams of Mg(OH)2 are required to neutralize this solution?
What is the activation energy of a reaction. What are the two ways that the activation energy can be determined for a reaction, i.e. consider graphing what data and using what formula
Nicotine is responsible for the addictive properties of tobacco. Assume Kb1= 1.05 x 10^-6 and Kb2= 1.32 x 10^-11. Determine the pH of a 0.00120 M solution of nicotine.
What is the density of a sample of ammonia (NH3) gas in a 4.32 L flask at a pressure of 641 torr and a temperature of 37.0oC?
Predict the sign of Delta Ssys for EACH of the following processes. -Gaseous Cl2 in the stratosphere to form gaseous Cl atoms. -Gaseous CO reacts with gaseous H2 to form liquid methanol, CH3OH. -Calcium phosphate precipitates upon mixing Ca(NO3)2(..
Calculate the value of Delta S in heating 3.5 moles of a monatomic ideal gas
Calculate the mass of silver chloride in grams required to make 5.6 grams of silver plating?
for the reaction shown below complete the following calculations.nbsph2g c2h4g --gt c2h6ga estimate the enthalpy of
A 46.2mg sample of phosphorus reacts with selenium to form 135mg of the compound. What is the empirical formula of the phosphorus selenide
Analysis of water in a sediment sample at equilibrium at pH 7.00 showed [SO42-] = 2.00 x 10^-5 M and a partial pressure of H2S of 0.100 atm. Show with appropriate calculations if methane, CH4, would be expected in the sediment.
The vapor pressure of the pure liquids at 25°C are 451 torr for pentane and 321 torr for cyclopentane. Assume that the solution is an ideal solution.
0.30 g of hydrogen chloride (HCl) is dissolved in water to make 4.5 L of solution. What is the ph of the resulting hydrochloric acid solution
The equilibrium constant, Kp, for the following reaction is 0.497 at 500 K: PCl5(g) PCl3(g) + Cl2(g) Calculate the equilibrium partial pressures of all species when PCl5(g) is introduced into an evacuated flask at a pressure
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