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alukav5142 [94]
3 years ago
12

34 grams of carbon react with an unlimited amount of h2o. the reaction is: c + h2o → co + h2 the equation is balanced. the start

ing substance is carbon,
c. the ending substance is hydrogen, h2. using the periodic table, find the atomic mass of
c.
Chemistry
1 answer:
VladimirAG [237]3 years ago
5 0
A  periodic  table  is  tabular  arrangement  of  the  chemical  elements,  ordered  by  their  atomic  number,electronic  configuration  and   recurring   chemical  properties.  carbon  is   in  group  14   and   period  two. The  atomic  mass  of  carbon  from   periodic  table is  12.01 g/mole
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Answer:

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Explanation:

First we <u>convert 1.2 x 10²³ atoms of arsenic (As) into moles</u>, using <em>Avogadro's number</em>:

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Then we can<u> calculate the mass of 0.199 moles of arsenic</u>, using its<em> molar mass</em>:

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