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Mastering Chemistry: Final Exam Calculate the pH of a solution prepared by dissolving 0.250 mol of benzoic acid (C7H5O2H) and 0.300 mol of sodium benzoate (NaC7H5O2) in water sufficient to yield 1.00 L of solution. The Kaof benzoic acid is 6.50 ⋅ 10-5.
Problem- A current of 3.57 A is passed through a Fe(NO3)2 solution for 1.40 hours. How much iron is plated out of the solution
Predict the physical state of ammonia at -95 degrees C (mp =-77degrees C, Bp =-33 degrees C) and normal atmospheric pressure.
you have a 10.40-g mixture of table sugar c12h22o11 and table salt nacl. whenthis mixture is dissolved in 150. g of
When 0.047 moles of ammonium sulfate are dissolved in enough water to make 413 milliliters of solution, how many ammonium ions are present?
Specified the information: Define the hybridization of each carbon in the benzene ring is sp2 with delocalized electrons.
a premature infant suffers from respiratory distress syndrome. compared to a normal infant, your patient will have- increased production of lactate by anaerobic glycolysis
The Chief Technology Officer (CTO) at ABC Widgets just returned from a technology conference where he heard about computer clusters. All he knows is that they are the big thing for businesses and he wants to explore the technology. He has asked you t..
A solution that contains 55.0 g of ascorbic acid (Vitamin C) in 250. g of water freezes at -2.34°C. Calculate the molar mass (in units of g/mol) of the solute. Kf of water is 1.86°C/m.
you have 505ml of a .170m HCL solution and you want to dilute it to exactly .100M. how much water should you add?
Calculate ?Svap for each of the liquids. Do all the liquids obey Trouton's rule? With reference to intermolecular forces, can you explain any exceptions to the rule?
calculate the molality, molarity, and mol fraction of HF in a solution made by dissolving 5.0g of HF in 250g of water
in an experiment 6.00 g of mgs was reacted completely with o2g to form mgos and 148.5 kj of heat was evolved. what is
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