Which of the following compounds provides the most solute particles when completely dissociated in water? Question 10 options:

MgCl2 because the mass of the particles is greater.

N2O4 because it dissociates into six ions.

NaCl because the mass of the formula unit is the smallest.

Na3P because it dissociates into four ions.

Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %

What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j

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?