How many liters of carbon dioxide will be produced at STP if 3.56 g calcium carbonate reacts completely with carbon dioxide? CaC
1 answer:
Answer:
V = 0.798 L
Explanation:
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In this case, for this gas stoichiometry problem, we first need to compute the moles of carbon dioxide via stoichiometry and the molar mass of starting calcium carbonate:
Next, we use the ideal gas equation for computing the volume, by bearing to mind that the STP conditions stand for a pressure of 1 atm and a temperature of 273.15 K:
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Each neutral carbon atom contains four valence electrons and may form up to four electron domains. Possible hybridizations include
, four electron domains, as in ethane
, three electron domains, as in ethene
, two electron domains, as in ethyne
Molecules of each of the three hybridization demonstrate spatial configurations that would maximizes the separation between the electron domains.
- Carbon atoms with a
- Carbon atoms with a
- Carbon atoms with a
Bond angles are characteristic of the spatial configuration of electron domains and identifies the hybridization of the central carbon atom.
Note that each hydrogen atom contains only one valence electron and would form only single bonds. It takes two valence electrons for oxygen atoms to achieve an octet such that each oxygen form only two bonds at a single time. Therefore given the fact that the carbon is bonded to both hydrogen and oxygen, only the following hybridizations are possible