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A tank with a flat bottom of area A and vertical sides is filled to a depth h with water. The top of the water is at atmospheric pressure. (a) What is the absolute pressure at the bottom of the tank? (b) How high could a faucet be placed before no water will come out of it?
coal fired power plants freqently encounter coal that is 3.90% sulfur by mass. when this coal is burned at a power plant the sulfur is converted into sulfur dioxide gas,
A 15.0 mL sample of an acid requires 37.3 mL of 0.303N NaOH for neutralization. Calculate the normality of the acid.
The mass of an atom of beryllium is 1.5 x 10^-26 kg. How many beryllium atoms are present in beryllium film of mass 0.37 g used as a window on an x-ray tube
When you are trying to calculate molarity, what volume do you use? I have a final volume of NaOH and an initial Volume and volume of NaOH
what would the magnitude of q need to be to give the experimental dipole moment? Express your answer as q divided by the proton charge. In other words, what fraction of a full proton charge is the charge magnitude of the ion pair?
the density of iron is 7.874 g/cm^3 at 300K. If iron forms a body-centered cubic lattice, what is the radius of an iron atom?
Draw a complete lewis structure for the CONJUGATE ACID of Nitromethane (condensed formula CH3NOOH). Draw a complete lewis structure that shows all bonds, unshared electron pairs, and minimized formal charges where appropriate.
The Cd2 was displaced from EDTA by the addition of an excess of CN-. Titration of the newly freed EDTA required 25.5 mL of 0.0250 M Ca2 . What were the molarities of Cd2 and Mn2 in the original solution
ow many stereo-isomers would there be if a molecule had four chiral centres, Rank the different carbocations in order of their stability.
What is the change in enthalpy when 18.4 g of steam at 100?C is converted to liquid water at the same temperature and pressure? The heat of vaporization of water is 40.7 kJ/mole. Answer in units of kJ.
What volume of each of the following acids will react completely with 50.31 mL of 0.146 M NaOH?
a cylinder of He gas has a volume of 25.0L at 22 degrees C and 5.6atm. How many moles of He are in such a cylinder?
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