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How many oxygen atoms are there in 52.06 g of carbon dioxide? Hint: How many O atoms does each carbon dioxide molecule contain?
1.204 x 1024
5.088 x 1023
1.424 x 1024
6.022 x 1023
1.018 x 1024
given that, for H2C2O4(aq), Ka1 = 6.5 x 10-2 and Ka2 = 6.1 x 10-5. Don't forget that Kw = 1 x 10-14.
At what ph would you carry out an electrophoresis experiement if you wanted to seperate a mixture of lysine
A rigid container of O2 has a pressure of 388kPa at a temperature of 713K. What is the pressure at 273K.
List the liquids in table 2 whose densities and boiling points most closely match those of the unknown liquid. List these liquids densities, boiling points, & solubilities.
A large gas flask is found to weigh 143.567 g. it is then filled with gas to a pressure of 735 torr at 31 C and found to weigh 1067.9 g (the density of water is 31 C is 0.997 g/mL). Assuming that the ideal gas equation applies, calculate the molar..
can be isolated from the bark of wild cherry trees. Show the reactants that you would use to synthese scopoletinc
What is the equivalence volume, Ve, in milliliters? Calculate the concentration of Ca2 at V = 1/2 Ve?
Determine the collision frequency at room temperature and compare this with the rate constant and teh Arrhenius parameters determined above.
Assuming no energy is transferred to or from the surroundings, calculate the final temperature of the water after all the ice melts. Heat capacity of H2O(s) 37.7 J/(mol X K) Heat capacity of H2O(l) 75.3 J/(mol X K) Enthalpy of fusion H2O 6.01 KJ/m..
What is the frequency of ultraviolet light with wavelength 2.51 × 10-8 m? (c = 3.00 × 108 m/s)
The half-life for the radioactive decay of [U]-238 is 4.5 billion years and is independent of initial concentration.
what amount of heat would need to be added to 5.0 x 103 g of water to change its temperature from 21c to 84c?
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