A solution of acetic acid and water contains 205.0 g L21 of acetic acid and 820.0 g L21 of water. (a) Compute the density of the solution. (b) Compute the molarity, molality, mole fraction, and mass percentage of acetic acid in this solution. (c) Take the acetic acid as the solvent, and do the same for water as the solute.

Consider the four elements above. which one of these elements will combine with oxygen in a 1: 1 ratio?

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

Which of your 24 wells had indications that a chemical reaction occurred? how were you able to tell that a chemical reaction occurred? which of your 24 wells had indications that a physical reaction occurred? how were you able to tell that a physical reaction occurred? report on both mixing and evaporation. make a general statement about whether your hypotheses were validated or rejected. must your hypotheses be correct for this to be a successful laboratory?