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A quantity of 6.0 moles of an ideal gas is reversibly heated at constant volume from 17 C to 35 C. Calculate the entropy change.
calculate the sodium ion concentration in a solution formed by diluting 35.00 mL of a .585 M sodium phosphate solution to a final volume of 145.00 mL
If 2.5 mol of ethylene oxide is decomposed at 93 degrees celcius what will be the final temperature of the products? The heat capacity of the products is 110.13J/mol C
How much energy in kilojoules is required to change 47.6grams of ice at 0 degrees of celcius water at the same tempature
calculate the purity of the ammonium chloride in the sample.
what is the vapor pressure of a solution made by adding 164g flycerin to 338mL H2O at 39.8 C. The vapor pressure pf pure water at 39.8 C is 54.74 torr
Serum taken from a patient being treated with lithium for manic-depressive illness was analyzed for lithium concentration. A reading of 276 units was obtained for the intensity of the 671 nm red emission line
A 150.0 ml flask contains 0.391 grams of volatile oxide of sulfur. The pressure in the flask is 750mmHg and the temperature is 22 degrees Celsius.
The following reaction is exothermic (H= -226 kJ) and has a rate law: Rate = k(NO2)^2: NO2 + CO ? NO (g) + CO2 (g) for each of the following disturbances, indicate whether the rate of the reaction will be FASTER or SLOWER and indicate whether ther..
For the reaction 2HCl + Na2CO3 to 2NaCl + H2O + CO2 what volume of 0.45 M HCl solution would be needed to produce 2.5 L of CO2 at STP?
When HSCN is added, you expect that the equilibrium will shift to the right and the reaction mixture will become darker (more orange).
Calculate the cell potential after the reaction has operated long enough for the [Al3+] to have changed by 0.40 mol/L. (Assume T = 25°C.)
Describe two different ways by which electrons can move from the valence band to the conduction band.
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