A stock solution has a concentration of 55.0 g/L. A 16.600 g/L solution is required. If you use a 250.0 mL volumetric flask for the dilution, what volume (in mL) needs to be taken from the stock solution?

What is the mass of sodium in 3 moles of sodium chloride

Can someone me with questions 12 and 13 plz.

Select the correct text in the passage. which sentences describe examples of sustainable living? i live in an old apartment building downtown, but my company is based in an office park on the outskirts of the city. i drive an old car that needs to be replaced. i plan to buy a hybrid for better gas mileage, but for now i am able to carpool with a couple of friends from work. the drive to the office park is about 45 minutes each way, but we do get to work in a modern building. the architects just received a leed certification for the design.