ipt A wall that was once white is painted black. Which of the following is definitely true of the painted wall? A. Its chemical
2 answers:
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<u>Answer:</u> The number of carbon and oxygen atoms in the given amount of carbon dioxide is and
respectively
<u>Explanation:</u>
To calculate the number of moles, we use the equation:
Given mass of carbon dioxide gas = 3.45 g
Molar mass of carbon dioxide gas = 44 g/mol
Putting values in above equation, we get:
1 mole of carbon dioxide gas contains 1 mole of carbon and 2 moles of oxygen atoms.
According to mole concept:
1 mole of a compound contains number of molecules
So, 0.0784 moles of carbon dioxide gas will contain number of carbon atoms and
number of oxygen atoms
Hence, the number of carbon and oxygen atoms in the given amount of carbon dioxide is and
respectively