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Using a liquid sample of Na that has a molar heat of fusion of 2.06 kj/mol calculate the number of moles in a liquid sample of Na if sample releases 41.4 kj when it freezes?
Find what is the initial concentration of the chlorine before dilution - unknown concentrated chlorine
Chemical Kinetics - Determine the time taken by a reactant to reach a particular concentration
Calculate the Root Mean Square Speed and its average kinetic energy per molecule of Nitrogen and water vapor
Understanding the basics of thermal chemistry and The Second Law of Thermodynamics indicates that a system
What is the total electronic energy
Compute pH and [OH-] for each of the following solutions. (a) 8.1×10-2M Na2CO3, (b) 0.15M NaCN
A buffer solution containing 0.25 M Acetic acid and 0.56 m Sodium acetate. After addition of 0.0060 mol HCL what is Ph of buffer.
Determine the equilibrium concentrations - what are the new equilibrium concentrations of all species.
Find out the exact significant figures for each of the values - Indicate the number of significant figures
To determine the volume of a gas using ideal gas law and evaluate the number of moles of a gas using ideal gas law.
Questions on chemical equations - Write a balanced equation for this reaction. Include the states of matter for each compound.
When 31.7mL of 0.235M Potassium hydroxide is required to completely neutralize 26.0mL of a HC 2 H 3 O 2 solution, calculate the molarity of the acetic acid solution.
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