Percent abundance - Chlorine has two naturally occuring isotopes, 35 Cl (isotopic mass 34.9689 amu) and 37Cl (isotopic mass 36.9659 amu). If chlorine has an atomic mass of 35.4527 amu, what is the percent abundance of e ...
Atomic Mass & Isotopic Abundance - The element boron consists of two isotopes, 10(superscript), 5(subscript)B and 11(superscript), 5(subscript)B. Their masses, based on the carbon scale, are 10.01 and 11.01, respectively. The abundance ...
Standard Enthalpies of Reaction - 50 g of C16H34 are burned with insufficient oxygen for complete combustion to CO2.
C16H34(s) + 16.5 O2(g) -> 16 CO(g) + 17 H2O(l) and some of the reaction forms CO2 and H2O(l) in the reaction C16H34 ...
Computing the Equilibrium Constant of a Reaction - Consider the equilibrium:
3A <----> B
You prepare a mixture with initial concentrations [A]0 = 0.61 mol/L, and [B]0 = 0. You wait until the mixture reaches equilibrium, and then you measure the co ...