How many degrees would the temperature of a 45.0 g piece of iron increase if 7,680 J of energy are applied to it? (The specific heat of iron is 0.449 J/g°C) Question 10 options:

76.6°C

155,000°C

380°C

0.0130°C

Assuming complete dissociation of the solute, how many grams of kno3 must be added to 275 ml of water to produce a solution that freezes at -14.5 c? the freezing point for pure water is 0.0 c and k_f is equal to 1.86 c/m