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Calculate the volume of the NaOH needed to completely neutralize the acid in the flask. Calculate the pH for a) initial acid solution in the flask; b) the point at which 8mL of the base has been added; c) the equivalence point and d) the point in which 20ml of the base is added?
Calculate the molar enthalpy change ?H~rxn for the dissolution of KNO3 in water. Calculate in the error in ?H~
The entropy change for a reversible process can be defined by the expression ?S = q?/?T. Which statement about entropy change is not correct
How does the strength of the attration between water molecules and sodium and chloride ions compare with the strength of the attraction between the sodium ions and chloride ions?
A mixture of 0.100 mol of CO2, 0.050 mol of H2, and 0.100 mol of H2O is placed in a 1.00 L vessel and reacts according to the reaction shown below.
Which salt would you expect to dissolve readily in acidic solution. calcium phosphate, Ca3(PO4)2 calcium sulfate, CaSO4 Calculate K for the reaction of H3O+ with the PO43- anion. Calculate K for the reaction of H3O+ with the SO42- anion.
NO2 then interacts withUV light according to the following reaction. Classify this reaction as a synthesis, decomposition, single-displacement, or double-displacement reaction.
Describe how you would make 2mL of the solutions that you described in the above using a 1.0 mg/mL solution of hemoglobin and a buffer to dilute it with.
The precipitate was filtered, dried, and weighed. A total of 2.10 g calcium fluoride was collected. What was the percentage of CsF in the original sample?
As a reference, a standard mixture containing 2.26 micrograms Co/mL and 1.92 micrograms Ti/mL was prepared and measured to have a signal-to-signal ratio of 2.41 Ti: 1.00 Co.
An ethylene glycol solution contains 21.2 g of ethylene glycol in 85.4 ml of water. Compute the freezing point and boiling point of the solution. (Assume a density of 1.00 g/mL for water)
A 50.0-mL sample of 0.50 M HCl is titrated with 0.50 M NaOH. What is the pH of the solution after 28.0 mL of NaOH have been added to the acid
even with a drying tube leaving phenylmagnesium bromide exposed to air will eventually lead to its decomposition. why?
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