In part a. Let's first solve for the moles of ammonium nitrate. We're told that we have 1.6 grams molar mass. 80 grams per mole, which we yield 0.20 Malls of the ammonium nitrates question tells us the mass of the H 20 is 75.0 grams. Change in temperature. 23 0.34 degrees Celsius. Uh, subtract 25 degrees Celsius, not leaves us with a temperature change of negative 1.66 degrees Celsius. Let's calculate heated the surroundings using this formula here, the mass 75.0 grams constant for water is 4.18 Jules program Degrees Celsius. Temperature change was minus 1.66 degrees Celsius. He did. The surroundings works out to be negative. 520 jewels, which is equal to negative 0.5 to 0 cure Jules. The heat of the reaction is equal to negative heat of the surroundings, so that is equal to positive 0.5 to 0 killer jewels. And now, to calculate the MPA p the reaction, the MP will be the 0.5 to 0 killer Jules, divided by the 0.20 moles We calculated initially to yield us with an EMP api of 26 killer Jules per mole part B will use the info beauty calculate the lattice. Sanji, Using this formula here, the MPA P is equal to the lattice energy plus the, uh, P hydration Told that. Well, first, we just calculated the delta each which is 26 killed, Jules per mall unknown is the lattice energy, and the p of hydration is 630. Killa Jules Ramo solving this for the unknown Lattice energy yields us, eh? Number of negative. 604 Killa Jules per no.