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What is the pressure exerted onto the closed end of an apparatus if the atmospheric pressure is 720 torr and the height of the water is 22.3 cm?
A solution is prepared by combining .025 mole CaCl2 and .015 mol Pb (NO3)2 and adding water to make 1L of solution. Will a precipitate of PbCl2 form in this solution
A reaction vessel at 27 degrees C containsa mixture of SO2 (P = 3.10 atm) and 02 (P=1.10 atm). When a catalyst is added to the reaction 2SO^2(g) + O2 (g) = 2SO3 (g) takes place
The compound has a molecular formula of C7H14O2. Draw the structure from the following NMR data: Ha=1H 1.2 ppm Hb=3H 1.3 ppm Hc=4H 4.1 ppm
What is the concentration of P retained in the soil (in mg P/kg)? What is the concentration of PO4 retained by the soil (in mg PO4/kg)?
What volume does the beaker hold? Use d =1.00 g/mL as the density of water answer in mL B)How much would the beaker and its contents weigh if it was completely filled with mercury?
at a temperature of 520 degrees C, the equilibrium concentration of HI is 0.80 M, of H2 is 0.010 M, and of I2 is 0.010 M. What is the K for the reaction?
calculate the ph of a solution of calcium carbonate having [calcium ion]=1.3x10^-4M,[carbonate ion]=3.8x^10-5M and [HCO3]=8.8X10^-5M
Calculate the systematic treatment of equilibrium. Remember C2O4^2- is a weak base so you must consider other equilibria. (Ksp(ZnC2O4)=7.5X10^-9, Kb1=1.8X10^-10, Kb2=1.8X10^-13). Solve using systematic treatment of equilibrium.
The reaction of coal with water at high temperatures produces synthesis gas, which is a mixture of carbon monoxide and hydrogen. Use the bond energies in the table below to estimate the enthalpy of the reaction C(g) + H2O(g) ? CO(g) + H2(g) Energy..
if you started a ride with ice packs that held 1600g of frozen water at 0 degree celius and the temperature of the
How many grams of sulfur (S) are needed to react completely with 355g of mercury (Hg) to form HgS?
Using electronegativity arguments, classify the following diatomic molecules as nonpolar (N), polar (P), or ionic (I). (Use the drop down menus to choose your answers
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