Determine the Meq of HCI of Trial 2 given the mass of Na2CO3, volume in mL of HCI used in each trial, and the normality of HCI in each trial. (Report to 4 decimal places) Trial 1 Mass of Na2CO3 (g) 0.195 Trial 2 0.144 Trial 3 0.297 Vol of HCI (mL) 57.579 57.369 56.549 N of HCI 0.099 0.098 0.098 Avg. N of HCI Meq of HCI

The following diagrams show varying amounts of the same solute (the red spheres) in varying amounts of solution. a. In which of the diagrams is the solution concentration the largest? b. In which two of the diagrams are the solution concentrations the same?

An experiment calls for 100. mL of 1.25 M HC1. All that is available in the lab is a bottle of concentrated HC1, whose label indicates that it is 12.1 M. How much of the concentrated HC1 would be needed to prepare the desired solution?

What happens if you add a very small amount of solid salt (NaCl) to each beaker described below? Include a statement comparing the amount of solid eventually found in the beaker with the amount you added: a a beaker containing saturated NaCl solution, b a beaker with unsaturated NaCl solution, c a beaker containing supersaturated NaCl solution. A saturated sodium chloride solution.