Show the calculation of the heat involved in converting 30 grams of steam at 110oC to 30 grams of ice at -20 oC. ∆Hfusion = 0.334 kJ/g; ∆Hvapor = 2.26 kJ/g; c (water) = 4.184 J/g oC; c (ice) = 2.09 J/g oC; c (steam) = 1.86 J/g oC

In which phase(s) do the molecules take the shape of the container?

Ethanol (c2h5oh) is produced from the fermentation of sucrose in the presence of enzymes. c12h22o11(aq) + h2o(g) 4 c2h5oh(l) + 4 co2(g) determine the theoretical yield and the percent yields of ethanol if 680. g sucrose undergoes fermentation and 326.5 g ethanol is obtained. theoretical _ g _ percent %

Which of the following units is not an official si unit? mole liter kilogram ampere