When 38. 0 ml of 0. 1250 m h2so4 is added to 100. Ml of a solution of pb(no3)2, a precipitate of pbso4 forms. The pbso4 is then filtered from the solution, dried, and weighed. If the recovered pbso4 is found to have a mass of 0. 0471 g, what was the concentration of nitrate ions in the original solution?.

The graph shows a trend in an ecosystem over time caused by increased pollution in the region. what can you conclude from the graph? a. there’s lower biodiversity among birds. b. there’s a higher reproductive rate among birds. c. there’s a significant decline in the number of producers. d. other types of animals were unaffected by pollution.