Answer:
the last one
Explanation:
A is the solution and the solvent and B is the solute
Answer:
When atoms other than hydrogen form covalent bonds, an octet is accomplished by sharing. The octet rule can be used to explain the number of covalent bonds an atom forms. This number normally equals the number of electrons that atom needs to have a total of eight electrons (an octet) in its outer shell
Explanation:
chemistry, the octet rule explains how atoms of different elements combine to form molecules. ... In a chemical formula, the octet rule strongly governs the number of atoms for each element in a molecule; for example, calcium fluoride is CaF2 because two fluorine atoms and one calcium satisfy the rule.
octet rule: Atoms lose, gain, or share electrons in order to have a full valence shell of eight electrons. Hydrogen is an exception because it can hold a maximum of two electrons in its valence level.
There is another rule, called the duplet rule, that states that some elements can be stable with two electrons in their shell. Hydrogen and helium are special cases that do not follow the octet rule but the duplet rule. ... They are stable in a duplet state instead of an octet state.
I belive it is thermal energy...
Answer:
the pressure P= 40.03 bar
Explanation:
The Van der Waals equation states that
P= R*T/(V-b) - a/V²
where
T= absolute temperature = 295 K
V= molar volume = 0.590 L/mol
R= ideal gas constant = 0.082 atm*L/mol*K
a= van der Waals parameter = 1.355 bar⋅dm⁶/mol² * (0.987 atm/bar) * (1 L²/dm⁶) = 1.337 atm ⋅L²/mol²
b= van der Waals parameter = 0.032 dm³/mol *(1 L/dm³) = 0.032 L/mol
then replacing values
P= R*T/(V-b) - a/V² = 0.082 atm*L/mol*K*295 K/( 0.590 L/mol-0.032 L/mol) - 1.337 atm ⋅L²/mol²/(0.590 L/mol)² = 39.51 atm
P= 39.51 atm / (0.987 atm/bar) = 40.03 bar
