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25.0ml of a 4.21M HCL solution at 25.2C and 50.0ml of a 2.2M NaOH solution at 25.2C are reacted together to give a temperature of 44.1C. The specific heat of the solution is 3.88 J/g-degree and it weighs 76.6g. First determine which is the limiting reagent, then calculate the heat produced by the reaction (q), and molar heat of the reaction (H) using the above equations
A star is estimated to have a mass of 1x10^36 kg. Assuming it to be a sphere of average radius 7.5x10^5 km, calculate the average density of the star in units of grams per cubic centimeter.
Determine which structure do you expect to contribute the most to the actual structure of BrO 4 - keep in mind to take in expanded octets, as suitable?
The final temperature of the water and metal was 25.0 C. Assuming no heat is lost to the surroundings,calculate the specific heat of the metal and estimate its atomic weight
Calculate the Root Mean Square Speed and its average kinetic energy per molecule of Nitrogen and water vapor
The distribution coefficient, k = (conc. in hexanes/ conc. in water), between hexanes and water for solute A is 7.5 . What weight of A would be removed from a solution of 10g of A in 100mL of water by a single extraction.
The solubility product of PbBr2 is 8.9 10-6. Determine the molar solubility in the following. (a) pure water
how many moles of HNO3 are present in 33.0 mL of a 4.70M solution ?
Calculate the enthalpy change for the dissolution of NH 4 NO 3 and expree your answer in units of kJ/mol.
what is the pH of a solution made by mixing 30.00mL of .10M acetic acid with 40.00 mL 0f .10M KOH? Assume the volumes are additive and Ka=1.8*10^-5 for CH3CO2H
The specific heat capacity of silver is 0.24 J/°C · g. Calculate the energy required to raise the temperature of 120.0 g Ag from 273 K to 305 K
How many liters of 13.5 molar HCl stock solution are needed to make 10.5 liters of a 1.8 molar HCl solution?
A 1-L flask is filled with 1.45 g of argon at 25^0C. A sample of ethane vapor is added to the same flask until the total pressure is 1.25 atm.what is the partial pressure of argon in the flask?
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