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In a constant-pressure calorimeter, 60.0 mL of 0.320 M Ba(OH)2 was added to 60.0 mL of 0.640 M HCl.
The reaction caused the temperature of the solution to rise from 22.06 C to 26.42 C. If the solution has the same density and specific heat as water, what is deltaH for this reaction (per mole of H2O produced)?
Assume that the total volume is the sum of the individual volumes
125 mL of H_2O is initially at room temperature (22.0C). A chilled steel rod at 2.0C is placed in the water. If the final temperature of the system is 21.5C, what is the mass of the steel bar?
Which carboxyl group is more acidic in 3-chlorohexanedioic acid? The 2 carboxyl groups in 3-chlorohexanedioic acid are not equivalent and have different dissociation constants
write the balanced chemical equation and corresponding equilibrium expression for the each step in the ionization of phosphoric acid ( apolyprotic acid ) in water?
A laboratory method of preparing oxygen gas involves decomposition of solid potassium chlorate. The products of the reaction are solid potassium chloride and oxygen gas.
A solution contains one or more of the following ions: Pb 2+, Ca 2+, and Zn 2+. When sodium chloride is added to the solution, a precipitate forms
The freezing point of t-butanol is 25.50°C and Kf is 9.1°C·kg/mol. Usually t-butanol absorbs water on exposure to air. If the freezing point of a 12.0 g sample of t-butanol is 24.59°C, how many grams of water are present in the sample?
If you had an excess chlorine, how many moles of aluminum chloride could be produced from 27.0g og aluminum?
A solution of ammonia and water contains 1.30×10^25 water molecules and 7.70×10^24 ammonia molecules. How many total hydrogen atoms are in this solution?
heptapeptide upon HCL hydrolysis produced equimolar amounts of ASP, CYS, GLU, LYS, PHE, TYR, VAL and ammonia. Exposure of the intact heptapeptide to FDNB followed by hydrolysis produced DNP-VAL
Determine hydroxyl and hydrogen ion concentration in this solution. (if Ka for ammonium ion = 5.0 x 10^-10.)
Determine the partial pressure and the total pressure using Dalton's law of partial pressures - Determine the total pressure of the mixture.
What happens to the solubility of an ionic compound as ionic strength of the solution increases up to ~0.5 M)? Why is there a correlation between the solubility of an ionic compound and the ionic strength of the solution?
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