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A Mercury barometer reads 743.5 mmHg. If the density of mercury is 13.523 g/cm^3 at 80.0 degrees C, what would be the height of a water column be if the density of water is 0.972g/cm^3 at 80.0 degrees C?
An open-end manometer containing mercury is connected to a container of gas. The mercury in the arm attached to the gas is 13.6cm higher than the one open to the atmosphere.
If 0.250 mole of hydrogen gas occupies 0.333 L at 20 degrees Celcius, what is the pressure in mmHg
If the concentration of fluoride in fluoridated drinking water is 1 x 10 ^-5 M and the calcium ion concentration in blood is 2.5 x 10^ -3 M, why is there no danger of CaF2 precipitating in the blood stream, after drinking the water?
80.0 of is initially at room temperature (22.0). A chilled steel rod at 2.0 is placed in the water. If the final temperature of the system is 21.2, what is the mass of the steel bar
If 5.50 g of the unknown compound contained 0.183 mol of C and 0.367 mol of H, how many moles of oxygen, O, were in the sample?
At a given temperature, the equlilibruin constant for the system studied in an experiement is 1.40x10^2. Suppose 100.0 ml of 2.00 x 10^-3 M KSCN was mixed with 100.0 ml of 2.00 x 10^-3 M Fe(NO3)3
During the preparation of a solution, a solute is dissolved in a volume of solvent smaller than the desired volume of solution. Subsequently, solvent is added until the final volume of solution is reached
Calculate the rate at which sulfur dioxide is being produced. Give your answer in kilograms per second. Be sure your answer has the correct number of significant digits.
U^o for the reaction A(s)+2B(g) ->2C(s)+D(g) was measured at temperature T in a constant volume calorimeter. ?H^o for the reaction is approximately what
Which statement about the hybridized oxygen molecule in water(sp3 hybridized oxygen) is not correct. The electrons remain in their assigned orbitals. The overall energy of the sp3 orbitals is exactly the same as the energy for the original orbital..
base catalyzed reaction of vanillin with acetic anhydride? They produce slightly different products, but how and why
Draw the Lewis structure of nitramide with a single bond between the two nitrogen atoms and include formal charges. Are there any resonance structures? If so, please draw these too. Describe the hybridization of the nitrogen atoms.
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