I HAVE A QUESTION?!?! Does any one have the answers to there slinky lab. I really need it. Especially the part where it ask to label the wave. It looks like a part, A, is pointing at the crest and the wavelength. I don't know which one it is tho! HELP!

Calculate: select the worksheet tab. this tab you calculate the analyte concentration.  fill in the first set of boxes ("moles h2so4" and "moles naoh") based on the coefficients in the balanced equation. (if there is no coefficient, the value is 1.)  record the appropriate volumes in the "ml naoh" and "ml h2so4" boxes.  record the concentration of the titrant in the m naoh box. click calculate. what is the concentration listed

What is the mass of 2.00 l of an intravenous glucose solution with a density of 1.15 g/ml?

Can someone me with 3 and 4 plz. this is for masteries test.