Chemistry 40 Laboratory Data Sheet Experiment 7: Mole Concept (RS 07) Name Nddow

Question

Chemistry 40 Laboratory Data Sheet Experiment 7: Mole Concept (RS 07) Name Nddow ka Section Manda Date olnlzsl Table 1: Mole Ratio of Iron to Zine in an Alloy Length of rectangular piece of galvanized iron, cmSo Width of rectangular piece of galvanized iron, cm Mass of the above piece of galvanized iron, g 388 8 9 67 Mass of iron core, g Mass of zinc coating (2 sides), g Atomic mass of iron, g/mol Moles of iron in galvanized iron o-161 esy Atomic mass of zinc, g/mol Moles of zinc in galvanized iron Mole ratio of iron to zinc Atoms of iron in galvanized iron Atoms of zinc on 2 sides of galvanized iron Ratio of iron atom to zinc atoms Mass of zinc on one side of galvanized iron, g Density of zine, g/cm 0006442 65, 7.14 Volume of zinc on one side of galvanized iron, cm p V otlo Thickness of zinc coating, cm Thickness of zinc coating in terms of atoms (diameter of a zinc atom is 268 pm) 0-0023IC

Explanation / Answer

1) sucrose =C12H22O11

so one mole of sucrose contains 12 mole of carbon atom.

thus, 0.750 mole of sucrose contains 12 x 0.750 = 9 moles of carbon atom

we know that, one mole of an atom = 6.023 x 1023 number of atoms of carbon.

thus, 9 mole of carbon = 9 x 6.023 x 1023 = 5.421 x 1023 number of atoms of carbon

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