Imagine you are a biologist who is working with a colony of 100 billion bacterial cells. This colony is entirely descended from a single bacterial cell that was not resistant to penicillin. You treat the colony with penicillin and eventually find that one of the cells is able to resist the effects of penicillin. Explain how that cell could be resistant if the first cell in the colony was not.

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)