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In nature, the element X consists of two naturally occurring isotopes. 107X with abundance 52.84% and isotopic mass 106.9051 amu and 109X with isotopic mass 108.9048 amu. Use the given information to calculate the atomic mass of the element X to an accuracy of .001%
how many liters of gasoline would you need to buy to complete a 142- trip in Europe? Use the following conversions
in a reaction between pure acetic acid and sodium bicarbonate 11.2 grams of sodium bicarbonate was added to 21.0 ml of
calculate the mass percent, the mole fraction, and the partial pressure of CO2 in the container after cooling back down to the initial temperature.
Calculate the pressure of a sample of hydrogen gas collected over water at 24.7C when the barometric pressure is 729.8 torr (see vapor pressure table) PV=NRT
If 155 of wet is collected over water at 24 and a barometric pressure of 738 , how many grams of have been consumed? (The vapor pressure of water is 22.38 .)
At 250C, the equilibrium constant Kp for the reaction PCl5(g) PCl3(g) + Cl2(g) is 1.80. Sufficient PCl5 is put into a reaction vessel to give an initial pressure of 2.74 atm at 250C. Calculate the pressure of PCl5 after the system has reached equi..
He later discovers that the percent carbon in 100 g of the solution is 12.10% by mass and consequently, determines that his solution is too dilute in sugar. What mass NaCl did the practical joker add to the container of sugar?
the value of the equilibrium constant K(pressure) is 0.2230. If a sealed vessel contains an initial reaction mixture of N2 = 0.0100M, H2= 0.0200M and N2H2= .000150M what will N2H2(M) be when equilibrium in reached.
What mass of carbon dioxide is produced from the complete combustion of 7.00×10?3g of methane
dinitrogen pentaoxide has 8.24 x10^20 molcules, how many gram of dinitrogen pentaoxide prsent
The equilibrium constant, Kc, for the following reaction is 7.00E-5 at 673 k. Calculate Kp for this reaction at this temperature.
The normal sublimation point of solid acetylene is -84 C. Figure out the answers to the questions below and then pick the correct statement from the multiple choices(i) Is the sublimation of solid acetylene an endothermic or an exothermic process
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