Chemistry Questions

Completado Publicado Oct 29, 2014 Pagado a la entrega
Completado Pagado a la entrega

First question:

How we can find Avogadro number if we know

density of Aluminum 2.7 g/mL

One mole of Al 26.98 g

radius of Al atom 143 picometers.. (1x10^-12)

Spherical density 74% (theoretical)

Cubic density 54 % (theoretical)

Second question: We need to find with of aluminum foil in atoms (how many atoms we can stack on each other to equal the with of aluminum foil

Given aluminum foil 744,5 cm^2

mass of foil 2.60 g

One mole of Al 26.98 g

density 2.7 g/mL

radius of 1 atom of Al 143 пикометров.. (1x10^-12)

Spherical density of Al 74% (theoretical)

Cubic density of Al 54 % (theoretical)

Biotecnología Ingeniería química Matemáticas Física

Nº del proyecto: #6659828

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jasqwerty

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itachi23

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surajvmohan

Hey, I can find the avogadro number for the first question and the number of aluminium atoms in the second question. this is a simple question. Please reply so that i can explain it to you.

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shoaibchem

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emmanuelkibor

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