2) Find the molar concentration of a 1.00 ppm Li (at wt = 6.94 g/mol) and Pb (at wt = 207 g/mol).

A team of geologists conducting research on a remote island have discovered a new crystalline substance (X). The data in the table below was collected after performing the following analysis: electrical conductivity, melting point and water solubility. Melting Point 1580°C 250°C Water Soluble Yes Substance Conductivity High Low Y Yes Which substance is an ionic compound? X is ionic because it conducts electricity and it has a high melting point. Y is ionic because it has low conductivity and a low melting point Y is ionic because it is water soluble and has a low melting point X is ionic because it is water soluble and it has a high melting point

100 mol of 0xygen is mixed with 300 mol 0f nitrogen at SATP (T = 298.15 K, P = 105 Pa).Calculate the t0tal v0lume 0f the mixture as per Amagat's law.

(a) In the recent years, the extractive heterogeneous-azeotropic distillation (EHAD) method gave great results in this field of separation (Toth et al., 2018). Acetone (1) and chloroform (2) mixture forms an azeotrope at temperature about 65 °C (338.15 K) and pressure of 101.325 kPa. The composition of azeotrope was found to be 0.335.  i. Determine the value of GE/RT.