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A sample of CaCl2 of 11.8 grams is dissolved in water of 121 grams, with both substances at the normal room temperature(25.0°C). compute the final temperature of the solution (assuming no heat lost to the surroundings ) the solution has a specific heat capacity = 4.18 J/°C·
Write down the product for the reaction; Butane (forward and backward reaction)in the presence of Aluminium bromide and HBr at the temperature of 27 degree celcius/
it is observed that a volume of 29.15 mL of KOH was neede to complete the process of titration. Determine what is the concentration of this unknown HCl solution?
Compute the density of dry air and molar mass at zero degree Celsius temperature and 1.0 atm of pressure.
What is ozone and how it works as a protective molecule for our environment? What are the effects of CFCs on the ozone layer.
The gas phase irreversible first-order reaction A----> 3B , is carried out in PFR where the feed is equal molar in A and inerts. the conversion under these circumstances is 50%.
Determine the value of work (w) when a piston of volume 0.2 litres expands against an external pressure of 200 kPa to a volume of 3.4 Litres?
Conclude the range of pressures that this system can exists as 2 phases By imagine Raoult's law is applied to the system
Calculate the enthalpy change for the dissolution of NH 4 NO 3 and expree your answer in units of kJ/mol.
Determine the rate constant for the reaction at the temperature of 75 degree celsius?
Using a sample of CO 2 occupies a 2.54dm^3 container at STP. Determine the volume of the gas at a pressure of a temperature of 26.0 degree Celsius and 150.0 kPa?
Which of the following isotopes is more likely to decay via positron emission rather than electron emission.
During a photochemical smog episode in a coastal city, the steady-state concentration of oxygen radicals at ground level was measured to be 0.09 ppmv at 25 degrees celsius.
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