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A volume of 84.0mL 0.25 M Hydrogen Bromide is titrated with 0.50 M Potassium Hydroxide. 42.0mL of KOH is added further then calculate the pH for this solution?
Heat of fusion of Methane =0.84 kJ/mol, heat of vaporization =9.2 kJ/mol. calculate approximately the value for the heat of sublimation of methane
Determine the calculated pH of the solution if initially there is 2.0mL of CH3COOH at an initial concentration of 0.89M and 0.80mL of 1.0M Hydrochloric Acid is combined.
What is the formula of the zinc sulfate hydrate? name this compound
How many grams of Oxygen gas are required if It is desired to inflate a baggie with 842 milliliters volume by filling it with O2 gas at 1.21 atm pressure and a 306 K.temperature ?
If a sample of sodium is dropped into a container of water the reaction is:
Explain a resting nerve cell membrane, sodium-potassium pump, action potential and what wil happen if sodium channels were blocked
Calculate the binding energy of the 2s electron in iron and calculate the binding energy of the 2s electron in iron. Does the new energy agree better with experiment?
Determine the concentration of a solution prepared by diluting 25.0 milliliters of a 12 molar HCl solution with H2O until the final volume is 2.50 x 10² milliliters.
Determine the pressure in Standard atmospheres,Torr and mm Hg units when A gauge on compressed gas cylinder reads 1500 psi ( pounds per square inch; 1 atm =14.7 psi).
Calculate kc for the reversible reaction and determine what is the activation energy
Compute the partial pressure of N2 at the surface of theH 2 O in mmHg. The Henry's law constant for nitrogen gas =1.3x 10^-3 mol/L x atm? at 25 degrees Celsius
What is the pH of the solution when the hydronium ion + concentration of 0.15 M CH3COOH is 6.3 × 10.
Determining the limiting reactant and mass of the product - which reactant is the limiting reactant? What mass of product may be produced?
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