Using the van der waals equation, find the pressure exerted by 1 mole of ar gas stored in a 1.42-liter container at 300 k. given: a = 1.35l2 · atm/mol2, b = 0.0322 l/mol, and r = 0.08205 l · atm/k · mol

I’m writing this equation by memory, so I hope I’m correct. It’s been about four months since we used in in my chem class:

(P-(n^2•a)/V^2)(V-nb)=nRT

Plugging in values given:

(P-(1•1.35)/(1.42^2))(1.42-(1•0.0322))=(1)(0.0821)(300)
(P-(1.35/2.016))(1.42-0.0322)=24.63
(P-(1.35/2.016))=17.75
P=18.42 atm

The pressure exerted by the Argon would be 18.42 atmospheres.

The statement that is true regarding the ionic compounds is as follows:

They are made up of particles that are arranged in a repeating pattern.

Further Explanation:

A chemical bond is defined as the force that is responsible to bind atoms together in a compound. This is responsible for the existence of a large range of chemical compounds. A chemical bond can either form due to interaction between ions or by mutual sharing of electrons.

Ionic bond

As is clear from its name, ionic bonding results from the electrostatic interaction between two oppositely charged ions. The ion carrying positive charge is called cation and is formed when electrons are removed from the neutral parent atom. The ion with a negative charge is known as anion and is formed by the addition of electrons to the neutral atom. The attractive force arising between cations and anions is called an ionic bond.

The reaction of cation formation is as follows:

 

The reaction of anion formation is as follows:

 

The compounds formed as a result of ionic bonds are known as ionic compounds. These compounds are neutral as a whole but consist of positively and negatively charged particles. Ions are tightly packed in a regular repeated manner in the structure of ionic compounds. Each ion is surrounded by the ions of opposite charges and this pattern goes on repeating in the formation of ionic compounds. These compounds are hard and have high melting and boiling points. KCl, NaCl and are examples of ionic compounds.

Therefore ionic compounds are made up of particles that are arranged in a repeating pattern.

Learn more:

Identification of ionic bonding: What type of bond exists between phosphorus and chlorine?

Answer details:

Grade: High School

Chapter: Ionic and covalent compounds

Subject: Chemistry

Keywords: chemical bond, force. atoms, compound, chemical compounds, KCl, NaCl, MgCl2, neutral, cations, anions, ionic bond, ionic compounds.