Sesh wants to create a device to transmit an electrical current. he has the following materials: pure water (h2o), brass (cu3zn2) foil, solid calcium chloride (cacl2), solid sugar (c12h22o11), pure methane (ch4), and a bunsen burner.

describe two ways he could use these materials to transmit electricity.

e

explanation:

tracks, burrows, eggshells, nests, tooth marks, or gastroliths

1. for the first question, we must find the mass of the anhydrous salt, mgso₄. the molar mass for mgso₄·7h₂o is 246.47 g/mol, while that of mgso₄ is 120.37 g/mol.7.834 g mgso₄·7h₂o * 1 mol mgso₄·7h₂o/246.47 g * 1 mol mgso₄/1 mol mgso₄·7h₂o * 20.37 g mgso₄/mol = 0.647 g mgso₄

2. mass of water = mass of sample - mass of anhydrous salemass of water = 7.834 - 0.647 = 7.19 gpercent water in hydrate = 7.19/7.834 * 100 = 91.74%

the electrical  conductivity  of asolution  of an electrolyte is measured by determining the resistance of thesolution  between two flat or cylindrical electrodes separated by a fixed distance.