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11 Dec 2019
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<p>mass of crucible and cover g 28.887</p>
<p>mass of crucible , cover and sodium azide , g30.354</p>
<p>mass of crucible , cover and Na g 29.406</p>
<p> </p>
<p> </p>
<p>mass of crucible and cover g 28.887</p>
<p>mass of crucible , cover and sodium azide , g30.354</p>
<p>mass of crucible , cover and Na g 29.406</p>
Sixta KovacekLv2
13 Dec 2019