A sample of carbon dioxide occupies 10.0 L under STP conditions. At what pressure wouldcthis same sample have a volume of 12.5 L and a temperature of 20.0oC?

0.859 atm

Explanation:

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

where,

= initial pressure of gas (STP) = 1 atm

= final pressure of gas = ?

= initial volume of gas  (STP) = 10.0 L

= final volume of gas = 12.5 L

= initial temperature of gas (STP)  = 273K

= final temperature of gas =

Now put all the given values in the above equation, we get:

Thus at 0.859 atm , same sample have a volume of 12.5 L and a temperature of

b..

is the correct one

explanation:

covalent bonds form as valence electrons are shared between two atoms. lewis structures and structural formulas are common ways of showing the covalent bonding in organic molecules. formal charge describes the changes in the number of valence electrons as an atom becomes bonded into a molecule.