Without consulting tables of ΔHf°, ΔS°, or ΔGf°, predict the temperature dependence of favorability for each of the two reactions given. Enter an answer for each reaction. 2 NO2(g) → N2O4(g) always favored favored at high temperatures favored at low temperatures C5H12(g) + 8 O2(g) → 5 CO2(g) + 6 H2O(g) always favored favored at high temperatures favored at low temperatures

given:

mass of na = 115 g

excess cl2

to determine:

mass of nacl produced

explanation:

given reaction is-

2na(s) + cl2(g) → 2nacl(s)

since cl2 is in excess, na will be the limiting reagent

as per the reaction stoichiometry na: nacl = 1: 1

i.e. moles of na reacted = moles of nacl formed

now, # moles of na = mass of na/atomic mass

                                  = 115 g/23 g.mol-1 = 5 moles

therefore, moles of nacl = 5

molar mass of nacl = 58 g/mol

mass of nacl = 5 moles * 58 g.mol-1 = 290 g

ans: amount of nacl produced = 290 g

10 years is the answer