you want to prepare a solution with a concentration of 200.0 μm from a stock solution with a concentration of 500.0 mm . at your disposal you have 5-ml and 10-ml transfer pipettes and volumetric flasks of sizes 100 , 250 , 500 , and 1000 ml . which of the following serial dilutions will give you the 200.0 μm solution?

Alex is the head photographer for the yearbook and the newspaper. she has a large staff of assistant photographers because they need to take pictures at all of the school events. she knows that some of her photographers have better cameras and can take action shots at sporting events, and that some of them are good at taking candid pictures in the hallways. she sets firm deadlines so she has enough time to look through all of the shots and choose the best ones. she gives her photographers constructive feedback to them improve their pictures. respectful enforcer warlord doormat peacemaker