An element has three isotopes. The masses and % abundances for the isotopes are: Isotope #1 mass 38.96 amu, % abundance=93.26%, Isotope #2 mass 39.96 amu, % abundance 0.012 %, and Isotope #3 mass= 40.96 amu, % abundance=6.73 %. The average atomic mass for this element has to be

He table below gives the atomic mass and relative abundance values for the three isotopes of element m. relative abundance (%) atomic mass (amu) 78.99 23.9850 10.00 24.9858 11.01 25.9826 what is the average atomic mass (in amu) of element m? 2.86 5.36 24.30 24.98

The lattice enthalpy (formation of ionic solid from ions in the gas phase) for agcl(s) is -916 kj/mol and the hydration enthalpy (dissolution of gaseous ions into water) is -850 kj/mol. how much heat (in joules) is involved in forming 1l of saturated agcl solution (1.8 × 10-4 g / 100 ml water) by dissolving agcl(s)? assume solution volume does not change much upon dissolution. the equations are given below. ag+(g) + cl−(g) æ agcl(s)

Which of two curves exhibits exponential growth