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A sample of gas occupies a volume of 537 mL at 0.776 atm and 79 oC. Calculate the temperature of the gas if its volume is changed to 591 mL while its pressure is held constant.
What is the pH at the half-stoichiometric point (that is, what is the pH when you have added 50% of the total volume of base required to react with all of the acid originally present?)
one way to reduce the formation of acid rain involves trapping the so2 by passing smokestack gases through a spray of
How would the ground-state energy levels of X and H compare (where X is an atom with one electron like Hbut different energy levels)? For X: E = - (RH / n3) and RH is the same as H (2.179 ×10?18J).
Which of the following IS NOT an example of a colligative property. A. vapor pressure reduction B. boiling point elevation C. freezing point reduction D. all of these are colligative properties
Find the activity(not the activity coefficient) of the (C3H7)4N+ (tetrapropylammonium) ion in a solution containing 0.005 M (C3H7)4N+Br- plus 0.005 M (CH3)4N+Cl-. The ionic strength will be affected by mixing
A non-volatile solute depresses the freezing point of cyclohexane by 4C. If cyclohexane has the formula C6H12 calculate the mole fraction of solute and solvent present in the solution.
A solution of I2 was standardized with ascorbic acid. Using a 0.100 g sample of pure ascorbic acid, 25.32 ml of I2 were required to reach the starch end point.
What is the specific heat capacity (in SI unit) of the following.
Calculate the amount of heat transferred when 24.0 of is decomposed by this reaction at constant pressure.
A roller coaster car of mass 310 kg (including passengers) travels around a horizontal curve of radius 33 m. Its speed is 16 m/s. What is the magnitude and direction of the total force exerted on the car by the track
an ethanol-water mixture is to be flash distilled at 1 atm. if the feed is 25 mole % ethanol, what are the liquid and vapor compositions if
The Ksp of lead(II) carbonate, PbCO3, is 7.40 × 10-14. Calculate the molar solubility of this compound.
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