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When a 2.00-g sample of KSCN is dissolved in water in a calorimeter that has a total heat capacity of 1.083 kJ·K-1, the temperature decreases by 0.460 K. Calculate the molar heat of solution of KSCN.
Determine What would be the total volume in the graduated cylinder if density of Ag= 10.5 g/mL.?
A mechanic in an automotive repair shop is exposed to the following carbon monoxide levels over an 8 hour shift.
The purpose of this experiment is to find out which fabric out of polyester, polypropylene, cotton and wool is the most suitable to make a sling back chair.
The volume of the gas collected =500 ml then determine the mass of O 2 is collected? The vapor pressure of H 2 O at 25 degree Celsius =23.8 torr
Calculate the number of 5.70m NaOH must be added to 666 ml of a buffer that contains .0205m C2H4O2 and .0260m C2H3NaO2 to increase the ph to 5.75.
How you will protect an underground pipe line from corrosion and what are biodegradable polymers or what are conducting polymers
Determine the hydraulic conductivity and transmissivity of the aquifer and What would Q be if the hydraulic gradient
A chemist wishes to prepare 200mL of a saturated solution of BaF2, the concentration of which is 6.3 x 10-3 mol/L. Determine the mass of BaF2 that will be needed to make up the 200mL of the solution.
Find out the concentration of this solution 1) in m (molality), 2) XHX (mole fraction of HX), 3)% w/w (percent by mass) if solvent in this solution is H 2 O. ?
The piston is then moved in and the heat rejected by the air reversibly at constant pressure until the volume is= initial volume. compute The net heat flow and the overall change in entropy?
Find out the amount of energy released by this process of fission of a single U 235 atom and expree your answer in joules?
A laser pulse with wavelength 555nm contains 4.40mJ of energy. How many photons are in the laser pulse.
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