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### AuthorTopic: Solid State : Where am I doing wrong.  (Read 1693 times) !function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="https://platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs"); (function() {var po = document.createElement("script"); po.type = "text/javascript"; po.async = true;po.src = "https://apis.google.com/js/plusone.js";var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(po, s);})();

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#### vivekrai

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##### Solid State : Where am I doing wrong.
« on: February 22, 2012, 03:58:46 AM »

Sorry for posting this as many people are having problem with me here . Anyways, the question and my solution are here, Please tell me where am I wrong?

Quote
Q:  CsCl has BCC structure in which Cs atoms occupy Body Center and Cl the corner sites. If density is 3.99 g/cc , Calculate :
a) The length of edge of Unit Cell
b) The distance b/w Cs+ and Cl- ions

We have, $$\rho =\frac{Z \cdot M}{a^3 \cdot N_A}$$

Putting values as Rho = 3.99 g/cc , M = 168.5 g (Z =1) , NA the usual Avogadro Number, We get a = 412 pm ?

Is it correct?
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#### AWK

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##### Re: Solid State : Where am I doing wrong.
« Reply #1 on: February 22, 2012, 05:11:12 AM »
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