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The standard enthalpy change for a process is 6.01 kJ/mol. What is the minimum value for the standard entropy change if the process is spontaneous?
This is a visualization question: If the number of mol of He in the mixture visualized is 1.53, calculate the total number of mol present in the mixture.
100 mL of .200 M HCl is titrated with .250 M of NaOH. What is the pH after 50 mL of the base has been added. What is the pH at the equivalence point
A direct current was passed through a solution containing alanine, Match the behavior with correct amino acid. The isoelectric point of histidine is 10.0.
What is the osmotic pressure of a soda which has about 40 grams of sucrose in 500 mL of water
Which of the listed perturbations would change the vaule of the equilibrium constant for the following reaction?
Using a sample of 30.0 mL of Kr(g), is at 25°C and 756 mmHg. Calculate the new volume if the temperature is decreased to -125°C and pressure is decreased to 325 mmHg .
What is the initial concentration (in M) when 17.8 mL of a iron(lll) chloride solution was diluted with 15.3 mL of solvent to a final concentration of 0.725 M? Assume the volumes are additive.
For 2.25 moles of an ideal gas, Pext=P=200x10^3 Pa. The temperature is changed from 122 C to 28.5C and Cv=3R/2. Calculate the q, w, delta U and delta H for an isochloric process.
at room temperature 20circ rm c milk turns sour in about 63 hours. in a refrigerator at 3circ rm c milk can be stored
an unknown organic compound is mixed with 0.5190 g of naphthalene crystals to give a mixture having a total mass of
Pure gold has a density of 19.32 g/cm3. How large would a piece of gold be if it had a mass of 318.97 g
A reaction has a standard free-energy change of -12.60 kJ mol-1 (-3.011 kcal mol-1). Calculate the equilibrium constant for the reaction at 25 °C
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