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Potassium hydrogen phthalate (KHP; molar mass= 204.2 g/mol) is one of the most commonly used acids for standardizing solutions containing bases. KHP is a monoprotic weak acid with Ka= 3.91x10^-6. Calculate the pH of the solution that results when 0.55 g of KHP is dissolved in enough water to produce 25.0 ml of solution.
Determine the mass of Al is needed to combine with 3.077 kilo grams of Ammonium per chlorate NH 4 ClO 4 for this reaction? express your answer in units of g
What is the energy required to change a spherical drop of water with a diameter of 1.40 mm to two smaller spherical drops of equal size?
the national institute for occupational safety and health (NIOSH) sets standered for ccl4 in air at 12.6 mg/m^3 of air
you mix 242 grams of NaCl with enough water to form 500 mL of solution. What is the final molarity?
Conjugate Pairs of Acids and Bases, What is the base if the acid is H2PO4- and the equation of the pair?
A gas occupying 28 mL at standard conditions is heated to 13?C while the pressure is reduced to 0.84119 atm. What is the new volume occupied by the gas.
the change in energy of each system and also of the composite system. the change in entropy of each system an also of the composite system.
Predict the outcome of the following reactions represented by the following equations by using the activity series, and balance the equations.
When 25.0 mL of 0.400 M H2SO4 and 50.0 mL of 0.850 M H2SO4 are mixed, what is the molarity of sulfuric acid in the final solution?
The temperature dependence of the reaction rate constant is given by the equation: ... ln k = ln A - Ea/RT ... ... Where: k = rate constant T = temperature A
A 6.50-g sample of copper metal at 25.0 C is heated by the addition of 84.0 J of energy. The final temperature of the copper is ____ C.The specific heat capacity of the copper is 0.38J/g-K.
Compute the volume of 3M NaOH(aq)aqueous sodium hydroxide needed to neutralize the phosphoric acids and acetic acid in the synthesis of acetyl-ferrocene.
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