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150 mL of a 0.776 M HCl aqueous solution is mixed with 150 mL of 0.388 M Ba(OH)2 aqueous solution in a coffee-cup calorimeter. Both the solutions have an initial temperature of 33.8°C. Calculate the final temperature of the resulting solution, given the following information:
H+(aq) + OH- (aq) → H2O(l) ΔHrxn = -56.2 kJ/mol
Assume that volumes can be added, that the density of the solution is the same as that of water (1.00 g/mL), and the specific heat of the solution is the same as that for pure water, 4.184 J/(gK).
Considering TLC and semi-microscale column chromatography techniques: how are they similar and how are they different? Make sure you explain how they are different in terms of polarity (bottom of TLC plate but top of column). What is the role of t..
Explain how to do this problem a gas sample has a volume of 500 ml at 20 degree Celsius. Define at what temperature would the gas have a volume half as large
Problem- The ideal bond angle for a tetrahedral electron group arrangement is 109.5 degrees. The bond angle measured for NH3 is about 107 degrees, while the measured bond angle for H2O is about 105 degrees. Explain these experimental results.
25.0mL of 0.10 M NaOH is utilized to titrate 10.0 mL of an HCl solution of unknown strength. Find out the concentration (M) of the HCl solution.
A chemical engineer studying the properties of fuels placed 1.500 g of a hydrocarbon in the bomb of a calorimeter and filled it with O2 gas. The bomb was immersed in 2.500 L of water and the reaction initiated.
Calculate the standard reduction potential (E'o) for the CO2/methanol redox pair. (Only have the statistics of the Gibbs Free Energy)
explain the hazards associated with 1.0M CH3COOH solution, 0.10M BaCl2 solution and 0.10M Na2C2O4 solution.
Problem- The formation constant of [M(CN)4]2- is 7.70 x 10 16, where M is a generic metal. A 0.160-mole quantity of M(NO3)2 is added to a liter of 1.130 M NaCN solution. What is the concentration of M2 ions at equilibrium
On a particular day, the following appliances are used for the times indicated: coffee maker, 40 min, and microwave oven, 12 min. Using the power requirements given in Table 4.4, find how much it costs to use the appliances at an electrical cost o..
Excess aqueous Hydrochloric acid was added to a 0.415 gram sample of an alloy of aluminum and copper.the aluminum dissolved, evolving hydrogen gas, while the copper, remained inert. 436 ml of gaseous hydrogen was collected over water at 24.6 degre..
Two radioactive isotopes of iodine used for the diagnosis and treatment of thyroid disease have mass numbers of 123 and 131. For each isotope, give the following information: (a) the number of protons; (b) the number of neutrons; (c) the number of..
does the HCl ionize the NH3 base? is the a conjugate acid or base, HCl is a strong acid, what happens when a strong acid and weak base are mixed?
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