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What volume of 3 M H2SO4 is needed to neutralize all of the disodium salicylate and the excess NaOH (2.17 mL excess) present after the initial reaction? How much sulfuric acid was in excess?
Assuming the solution has a heat capacity of 4.18 J/°C·g and assuming no heat loss to the calorimeter, calculate the enthalpy change for the dissolution of NH4NO3 in units of kJ/mol.
Determine the numerical values of the parameters A, B, and C in the Antoine equation relating vapor pressure of pure substances to temperature using an appropriate linear regression procedure.
Determine the amount of heat energy is needed to raise the temperature of 0.362 kilograms of Cu from 23. Degree Celsius to 60 degree Celsius?
How many different types of resonance structures can be drawn for the ion SO32.
A voltaic cell is set up at 25º C with thefollowing half cells: Al3+ (0.0010 M) | Al and Ni2+(0.50 M) | Ni. Write an equation for the reaction that occurs when the cellgenerates an electric current and determinethe cell potential.
Compute the number of mL of 2.00M H2SO4 required neutralizing 125.5mL of 1.2M KOH
An unknown compound with a molecular formula of C8H18 reacts with chlorine in the presence of light and heat
170mL of O2 gas is collected over water at 25 degrees C and the total pressure is 742 mm Hg. The vapor pressure of water is 23.8 mm Hg at this temperature. What would the volume of the dry gas be at STP? ( hint Daltons Law and Combination Law are ..
What is the molarity of a solution in which 2.69 g of C12H22O11 (MM=342.29 g/m) is dissolved in enough water to make 225 mL of solution?
Lucite is 71.4% carbon, 9.59% hydrogen, and 19.01% oxygen. What is the empirical formula for Lucite?
What volume of fuel should you bring? Assume each of the following: the fuel has an average formula of 15 of the heat generated from combustion goes to heat the water (the rest is lost to the surroundings)
Suppose that a student collects the following spectrophotometric data to determine the relative concentrations of HMR and MR in solution:
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