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If an amount of heat 6.824 kJ of is added to a coffee cup calorimeter containing 54.55 grams of water in starting water's temperature was 21.720 degree Celsius and after some time its temperature rises to 27.525 degree Celsius?
Determine the calorimeter constant or eat capacity, for this calorimeter if the specific heat for water= 4.184 J/goC.
Calculate how many moles of nitrogen will be required to make 10.0 moles of NH 3 and calculate what is energy of each pulse If each pulse contains no of photons =1.20 x 10 18
Using a sample that was dissolved in CH 2 Cl 2 , mixed alumina, evaporated the CH 2 C l2 , loaded and began to run his column, starting with C 6 H 14
What is the mass of one mole of the gas when the density of a gas is 0.0151 g/mL at 150 degrees Celsius and 1.50 atmospheres?
Pyridine(C5H5N) is a weaker base in H2O than 2,6 lutidine (dimethylpyridine), but we observe that the pyridine-BF3 complex is more stable than the comparable lutidine-BF3. Explain the reason for this inversion in stabilities.
Evaluate the energy of an electron excited from a hydrogen atom using Bohr's model. Determine the maximum wavelength of energy needed to observe a photoelectric effect for potassium.
Calculate the PH of this solution.
Calculated what is the pressure exerted by the tweezers on the floor at the moment of impact
Determine the ion notation for an atom with 18 electrons and 20 protons
Compute the heat amount required to heat a 3.9kg gold bar from 28 degree Celsius to 68 degree Celsius. Given Specific heat capacity of gold = 0.128 J/g°C.
Determine how many grams of Phosphorus tri-fluoride will be produced when 40.1 g of F2 mix, and the reaction has a 78.1% yield?
Multiple choice questions in Nuclear chemistry - As the temperature of a sample of a radioactive element decreases, the half-life will
Determine the boiling point of a 1.5m aqueous solution of fructose.
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