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A gas occupying a volume of 1.50 L exerts a pressure of 700 mmHg at 200 degrees C. Which mathematical expression gives the correct pressure at 6.00 L and 400 degrees C?
A) 700 mmHg x 1.50L/6.00L x 473K/673K
B) 700 mmHg x 1.50L/6.00L x 673K/473K
C) 700 mmHg x 6.00L/1.50L x 473K/673K
D) 700 mmHg x 6.00L/1.50L x 673K/473K
E) 700 mmHg x 6.00L/1.50L x 400degreeC/200degreeC
Colligative Porperties : Freezing Point Depression, Salt lowers the freezing point of water. So will sugar. If one tablespoon of solid (salt or sugar) is dissolved in ¼ cup of water
Which will experience the greater effective nuclear charge, the electrons in the n=3 shell in Ar or the n=3 shell in Kr? Which will be closer to the nucleus?
A solution is prepared by dissolving 159 g of sucrose (C12H22O11) in 624 g of water. What is the vapor pressure of this solution at 30°C? (The vapor pressure of water is 31.8 mmHg at 30°C.)
A gas was enclosed in a rigid-walled container. The initial temperature and pressure were 52°C and 0.55 atm, respectively. If the final pressure were 2.41 atm.
what are some difference or similarity in the type of inhibition caused by heat, acid or base and heavy metal ions on enzyme activity.
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Determine the theoretical yield in grams and the percent yield, if 21.8 g of K2CO3 is produced form reacting 27.8g K2O with 8.0 L of CO2 at STP.
Calculate the molarity and mole fraction of acetone in a 1.26 m solution of acetone (CH3COCH3) in ethanol (C2H5OH). (Density of acetone = 0.788 g/cm3; density of ethanol = 0.789 g/cm3.) Assume that the volumes of acetone and ethanol add.
Calculate the percent population of the first 10 rotational energy levels for HBr (rotational constant B = 8.46cm^-1) at 298K?
What will be the final temperature of a 15.0g sample of water that is heated with the addition of 4.2kJ at 18 0C
Calculate the change in entropy (in J/K) for the following reaction at 298 K: C(s) + H2O(g) ? CO(g) + H2(g) Use entropy for graphite (diamond is too expensive).
An electron is confined to a linear region with a length of the same orderas the diameter of an atom (about 100 pm).
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