When making ice cream, the ingredients must be kept below 0.00 ˚C in an ice-salt bath. Assuming the salt dissolves completely, what mass, in g, of Na3PO4 would be needed to lower the melting point of 2.66 kg of ice to -5.39 ˚C? You may ignore ion pairing. Na3PO4 = 163.94 g/mol, Kf = 1.86 ˚C/m for water

Note: Do not use scientific notation or units in your response. Sig figs will not be graded in this question, enter your response to four decimal places.

To find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? a) when more work was done, the couch was moved the same distance. b) when more work was done, the couch was moved less. c) when more work was done, the couch was moved further. d) when more work was done, the couch wasn't moved at all.