A titration is performed as follows: 15.628 mL of Fe2+ solution of unknown concentration is charged into a 100 mL beaker 45 mL of deionized water is added the solution is titrated with 0.849 M Ce4+ solution the equivalence point is reached after 6.677 mL of Ce4+ solution is added What is the concentration of the Fe2+ solution? Report your response to three digits after the decimal.

Find the mass, in grams, of 5.00*10^23 molecules of f2

When the mercury level in a barometer decreases that atmospheric pressure has

Many bird species build nests in which they raise their offspring. one of these species is known as the magnolia warbler. breeding pairs of magnolia warblers build nests out of pieces of grass and twigs. the female warbler will then lay her eggs in the nest and sit on the eggs for a few weeks until they hatch. after the offspring have hatched, the female will continue to sit on the newborn chicks to keep them warm. both the male and the female bring food for the offspring to eat until the young are mature enough to find food on their own. which of these most likely describes why birds such as the magnolia warbler build nests in which to raise their offspring? a. nest building decreases the amount of energy used by the parent birds to raise their offspring to adulthood. b. nest building increases the probability that the offspring will survive and eventually produce offspring of their own. c. nest building decreases the amount of food that the offspring require the adult birds to provide. d. nest building increases the probability of the offspring being located by airborne predators.