It is required to construct the following Galvanic cell.
Mg/ Mg2+ - bridge - Ni2+ / Ni
The following materials are available:
2 (250 ml) beakers-Salt bridge - Voltmeter (Multimeter) - Connecting wires - Alligator clips-
Magnesium strip-Nickelstrip-Nickel ion solution of concentration C=0.1 mol. L-1- Zinc ion
solution of concentration C=0.1 mol. L-1

Please show me the drawing

the formula mass of a molecule or a compound is the sum of the atomic weights of the atoms in its empirical formula

(that's what i know about formula mass)

answer is: empirical formula is tl₂o. if we use 100 grams of compound, tha:

m(tl) = 96.2%  · 100 g ÷ 100%.

m(tl) = 96.2 g.

n(tl) = m(tl)  ÷ m(tl). n(tl) = 96.2 g  ÷ 204.4 g/mol.

n(tl) = 0.47 mol. m(o) = 3.77 g. n(o) = m(o)  ÷ m(o). n(o) = 3.77 g  ÷ 16 g/mol. n(ag) = 0.235 mol. n(tl) . n(o) = 0.47 mol : 0.235 mol /0.235. n(tl) . n(o) = 2 : 1.

m(tl₂o) = 204.4 g/mol  · 2 + 16 g/mol = 424.8 g/mol.

m(compound) = 456. 8 g/mol - 424.8 g/mol = 32 g/mol ( 2 oxygens); tl₂o₃.