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Calculate the concentration in mol/dm3 and g dm3 of a Sodium ethanediote (Na2C2O4) Solution 5.00cm3 of which were oxidized in acid Solution by 24.50cm3 of potassium manganate (vii) solution containing 0.05mol/dm3
Arrange the following according to increasing boling point:
1m NaCl, 1m CaCl2, 1m C6H12O6, 1m AlCl3
Explain your answer.
Arrange the following according to increasing vapor pressure:
1m NaCl, 1m CaCl2, 1m C6H12O6, 1m AlCl3
Explain your answer.
Enthalpy of Chemical Reaction- Thermochemical Equation
1. Write the thermochemical equation for the following reactions that occur at constant pressure:
a. Decomposition of mercuric oxide to mercury and oxygen gas requires 87. 1 kJ of heat
b. Combustion of hexane, to carbon dioxide and water, releases 3923.9 kJ heat
A 2 L sulfuric acid solution containing 320 g of H2SO4 per liter of solution has a density of 1.329 g/ mL. What is the mole fraction of the solvent in the solution? Assume that the solvent is water.
A. 5% by volume, 25 ml HNO3 solution. Find mass solute
A work of 657 J is done on a system that releases 434 J of
heat. What is the energy change in the system?
What is the molecular mass of a non-electrolyte solute in a solution that contains 0.6kg of solute and
200g of benzene with a freezing point equal to 5.4°C? The freezing point of pure benzene is 5.53°C/m.
The freezing point constant of benzene is 5.12°C.
How did the ideal gas laws apply in internal combustion engines? give claim, evidence and reasoning.
At 450°C ,the Kp for the reaction N2(g)+ 3 H2(g) 2NH3(g) is 4.5 x 10-5 . For each mixture listed,indicate whether the mixture is at equilibrium at 450°C. If it is not at equilibrium,indicate the direction (toward product or toward reactants) in which the mixture must shift to achieve equilibrium.
