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One mole of ice is warmed from 220 K to 300 k at constant pressure of 1 bar. Find the enthalpy change for this process 2) If we assume that the volume of the ice/water does not change significantly during the process in #1 what is the energy change? 3) When the ice melts the density change from .9167 g/cm^3 to 1.000 g/cm^3. If we assume that the volume change is due entirely to this density change (that is we neglect thermal expansion of the ice/water), what is the difference between the enthalpy change and the energy change during theis process? Is this a significant difference, compared to the total energy
A 26.0-g sample of ice at -11.0°C is mixed with 123.0 g of water at 90.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
A 50.00-mL sample of white dinner wine required 24.76 mL of 0.03867 M NaOH to achieve a phenolphthalein end point. Express the acidity of the wine in terms of grams of tartaric acid
When a 2.41x102 g strip of zinc is dropped into a large beaker containing excess hydrochloric acid, how many grams of gas are formed.
What is the pressure of a 10g sample of sulfur trioxide in atmospheres at a temperature of 20 degrees Celsius that has a volume of 50L
Choose the answer that shows a correctly balanced equation.
Based on the following chemical equation 2C6H6 + 15O2 12CO2 + 6H2O calculate the number of moles of CO2 that will be produced
Using phosphoric acid, what concentrations are needed to give a pH 8.10 solution with an ionic strength of 0.100 M?
A Student dispenses 24.95 mL of a hydrochloric acid solution with an unknown concentration into an Erlenmeyer flask. The student then titrates the HCl solution with 0.168 M sodium hydroxide. If 24.33 mL of NaOH is required to reach the equivalence..
of an apparatus that could be used to electroplate a ton spoon with Ag. Label the anode and cathode, suggest an electrolyte, and write the anode and cathode half reactions. explain how the process takes place.
When 2 mole of A is reacted with 2 moles of B, 3 moles of C are formed. When 1 mole of A is reacted with 3 moles of B, 3 moles of C are again formed. Based on this, what is the balanced reaction?
What is the freezing point of a solution containing 5.43 grams of butane (molar mass = 58.8 g/mole) dissolved in 50.0 grams of octane? The freezing point of pure octane is 25oC and the freezing point depression constant kfp is 3.42 oC/m.
the color change at the endpoint should persist for 30 seconds. Why is this time lapse a good titration technique
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