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For a chemical reaction that has a positive delta Ho value and a negative delta So value, under what conditions will the reaction proceed spontaneously toward products? (choose one)
A. At any temperature
B. Only at high temperatures
C. Only at low temperatures
D. Never
E. Can't tell from the given information
Which lists the 4 ions present in a dilute solution of H2SO4 in order of increasing concentration? why?
How many grams of aluminum metal and how many liters of chlorine gas can be produced by passage of 4.8 amp of current for 2.3 hour under standard conditions (25?C and 1 atm pressure)?
Calculate the concentration of a red dye solution with an absorbance of 0.617. If you have 5.78ml of the solution how many mg of red dye are found in the solution.
If there are initially 7.21 grams of the compound dissolved in 110.0 mL of water, how many grams will remain in the aqueous layer after extraction with one 30.0 mL portion of ether?
What is the value of Ksp for Ag2SO4 if 5.40 g is soluble in 1.00 L of water?
A flask contains a mixture of Ne(g) and Ar(g). There are 0.250 mol of Ne(g) which exerts a pressure of 205 mmHg. If the Ar(g) exerts a pressure of 492 mmHg.
When 25mL of a 120mL stock solution containing 2M AlCl3 is diluted to 80mL, how many moles of Al3+ are in the new solution.
Calculate the pH of a buffer solution with .10 moles of C2H5COOH and .13 moles of C2H5COONa in 1.5L
The reaction of 0.130 moles of a metal with an acidic aqueous solution in a calibrated calorimeter causes the temperature to increase by 49.0°C.
Which of the following are a conjugate acid-base pair in the above reaction?
When 20.0 grams of an unknown compound are dissolved in 500. grams of benzene, the freezing point of the resulting solution is 3.77°C. The freezing point of pure benzene is 5.48°C, and Kf for benzene is 5.12°C/m. What is the molecular weight of th..
Give examples of a neutral salt, acidic salt and basic salt. Explain your choice.
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