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Calculate the radius of a Au (gold) atom if Au atom has a face-centered unit cell ? it is given that its density = 19.32 g/cm3 .?
Assuming freezing point of benzene at 5.5 degree Celsius , (Benzene, C6H6, is an organic liquid ). Calculate How much energy (in the form of heat) is evolved if benzene of 15.5 g freezes at th temperature of 5.5 degree celsius? It is given that The enthalpy of fusion = 9.95 kJ/mol.?
Determine the equilibrium concentrations - what are the new equilibrium concentrations of all species.
Design a tube and shell heat exchanger for the fluids and duty given for you and complete Project Management tasks
calculate the difference in mass that is hold by a 500.0mL flask at a temperature of 0.0°C from that at temperature of 20.0 °C? (you can assume the volume of the sample at 0.0 °C temperature =volume of the sample at 20.0°C)
Phosphorus is combined with chlorine to give PClz a gaseous compound .calculate the value of z If you start with 2.097g of P and isolate 9.298g of PCLz .
Using a phosphorus 12.39 g sample that reacts with 42.54 grams of chlorine to produce only phosphorus Trichloride (PCl3). If it is the only product, determine what mass of PCl3 is formed?
Find the new volume of the gas sample - What is the new volume of the gas sample
Determine the pressure of a gas using the ideal gas law - Calculate the pressure inside the vessel after all the dry ice has been converted to CO2 gas.
How would you expect a titration curve of both the solutions and what will happen if HCl is added to the H 2 O and sodium acetate buffer ?
Describe in brief the risk connected with solutions of 1M NH 3 , 1M HCl, and 1M NaOH?
Using a sample of a compound containing only oxygen and chlorine reacts with an excess of H2 gas to give 0.206 g water and 0.278 g HCl
Questions on chemical equations - Write a balanced equation for this reaction. Include the states of matter for each compound.
Determine the final concentration and Determine What mass of Ar is needed to exert half the pressure (at the same conditions of volume and temperature)?
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