You have two beakers, one filled to the 100-ml mark with sugar (which has a mass of 180.0g) and the other filled to the 100-ml mark with water (mass of 100.0g). you pour all the sugar and all the water together in a bigger beaker and stir until the sugar is completely dissolved.
which of the following is true about the mass of the solution? justify your answer.
a) it is much greater than 280.0g.
b) it is somewhat greater than 280.0g.
c) it is exactly 280.0g.
d) it is somewhat less than 280.0g.
e) it is much less than 280.0g.

There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .