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A) Explain how high in meters must a column of water be to exert a pressure equal to that of a 760-mm column of mercury? Explain the density of water is 1.0 g/mL, whereas that of mercury is 13.6 g/mL.
B) Define what is the pressure, in atmospheres, on the body of a diver if he is 27 ft below the surface of the water while atmospheric pressure at the surface is 0.98 atm?
in the alkylation of cyclopentanone better yields are obtained by first reacting cyclopentanone with an equivalent of
A solution of MnO2- 4 is electrolytically compact to Mn3+. A current of 7.19 is passed throughout the solution for 15.0 min. Explain what is the number of moles of Mn3+ produced in this process
A camping lantern uses the reaction of calcium carbide, CaC2 (s) , and water to produce acetylene gas C2H2 (g) , and calcium hydroxide, Ca(OH)2 (s) . How many grams of water are required to produce 1.55 moles of acetylene gas
Determine what is the percent yield of the reaction If 15.0 grams of Nitrogen and 2.00 grams Hydrogen react to produce 1.38 grams of Ammonia?
A 12-liter tank contains helium gas pressurized to 160. What size tank would be needed to contain this same amount of helium at atmospheric pressure 1 ATM.
lightning from thunderstorms strike the earth 100 times each second. 2400 deaths have been caused bylightning strikes
The hottest temperature yet recorded in Phoenix AZ was 122 dgrees F what is the temperaturein degrees C and K
A 347 ml sample of solution contains 5.1 g of CaCl2. Calculate the molar concentration of chloride ion in this solution
The solubility of calcium sulfate is 0.67 g/L. Show the calculation of the Ksp for calcium sulfate (all steps including chemical equilibria must be correct for full credit)
Solder is used in the electronics industry because it has a low melting point and can make durable electrical connections between copper wires. Electronic solder is an alloy of tin and lead.
how thick of a veneer is required if some of the water from the meteorite dissociates and the resulting oxygen is used to oxidize one third of Fe+2 in the outer 800 km of the 6000 km proto earth to Fe3+?
There is an increase in temperature of 56 K. Calculate the heat lost or gained by the system in response to this change in the external temperature.
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