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Using a sample of hard water contains 121 mg of calcium carbonate per liter of H2O. suppose the reaction goes to finishing point, compute the mass of Trisodium phosphate required to remove all Ca^2+ ions from 2.50 Litres of the H2O sample?
Multiple choice questions in free energy change and What is the free energy change in kJ/mole?
Explain why the boiling point of an aqueous solution that is 1.0 m in glucose (C6H12O6) is 100.51oC whereas The boiling point of an aqueous solution that is 1.0 m in NaCl is 101.02 oC .
The density of palladium(Pd) is 12.0 g/mL at 20 degree Celsius temperature and the density is 11.0 g/mL 1550 degree Celsius temperature . What is the change in volume (V) if tempreture raises of 4.21 kg Pd from 20°C to 1550°C.
Calculate the Root Mean Square Speed and its average kinetic energy per molecule of Nitrogen and water vapor
Compute the free energy change needed for transport of sufficient protons to make gastric juice of 1 litter at the temperature of 37 degree celsius hence expect above reaction will happen spontaneously?
Using a solution containing 0.302 grams of an antibiotic has an osmotic pressure of 8.34 mmHg At 23.6°C, 0.500 L. calculate its molecular mass.
Calculate the approximate SO 2 mass emission in lb/day.
Find the value of Pressure - How much more pressure will the gas exert if the temperature is raised to 44.1°C?
Determine the molar concentration of chloride ions after adding 225 ml of 0.625 MKCL with 615 ml of 0.385M MgCl2 if final volume of the solution is 840ml.
calculate the approximate concentration of the solution in mol/kg and determine the volume change of the ballon when it ascends from 1 atm pressure to 240 torr pressure ?
Chemical Kinetics - Show that only the reactants of the slow step of a reaction are found in the rate law of the reaction - which of the two steps is slower and which substance (if any) is probably an unstable intermediate?
What is the pH of the solution when 50 grams of Ca(OH)2 was added to 1 liter of water? Ksp of Ca(OH)2 = 6.5 x 10^-6
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