Arigid, closed vessel of volume v-648 liters maintained at constant tem- perature t-365 k is loaded with 112 mol of n-hexane, 155 mol of n-heptane, and 14 mol of nitrogen. calculate the pressure in the vessel and the composition of all phases present at equilibrium. make the following three assumptions: a) n-hexane and n-heptane form an ideal liquid solution, b) the vapor phase is ideal, c) nitro- gen has negligible solubility in the liquid phase at the conditions of interest. the vapor pressures of n-hexane and n-heptane at t-365 k are p0.199 mpa and p-0.083 mpa, respectively. their (liquid) molar volumes are v-0.146 vmol and v 0.16m, espectivcly

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.

explanation: