An ideal gas is a theoretical gas that is considered to be composed of randomly moving point particles that do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.

<h3>Definition of ideal gas law</h3>

An ideal gas is characterized by three state variables: absolute pressure (P), volume (V), and absolute temperature (T). The relationship between them constitutes the ideal gas law, an equation that relates the three variables if the amount of substance, number of moles n, remains constant and where R is the molar constant of gases:

P×V = n×R×T

<h3>Pressure of the gas sample</h3>

In this case, you know:

P= ?
V= 500 mL= 0.5 L
n= 2.50 moles
R= 0.082 $\frac{atm L}{mol K}$
T= 25 °C= 298 K

Replacing in the ideal gas law:

P×0.5 L = 2.50 moles ×0.082 $\frac{atm L}{mol K}$ ×298 K

Solving:

P= (2.50 moles ×0.082 $\frac{atm L}{mol K}$ ×298 K)÷ 0.5 L

Finally, the pressure of the gas sample is 122.18 atm.

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7 0

2 years ago

The term nuclear charge refers to the precise charge of the nucleus, which, in units of fundamental charge, is equal to the numb

V125BC [204]

Answer:

the number of shielding electrons

Explanation:

Effective nuclear charge is estimated from slaters rules. It is the nuclear charge an electron actually experiences in its orbit and it depends on the number of screening electrons. Slaters rule is a set steps that obtains the effective clear charge using a screening or shielding constant which depends on the orbital of the screening electrons.

3 0

4 years ago

Consider the chemical equation. 2nbr3 3naoh right arrow. n2 3nabr 3hobr if there are 40 mol of nbr3 and 48 mol of naoh, what is

jenyasd209 [6]

Following the equation and the stoichiometry of the reaction, excess reactant.

<h3>What is excess reactant?</h3>

The excess reactant has to do with that reactant that is present in more amount than is required in the reaction.

In this case, we have the reaction; 2NBr3 + 3NaOH ---> N2 + 3NaBr + 3HOBr.

If 2 moles of NBr3 reacts with 3 moles of NaOH

x moles of NBr3 reacts with 48 moles of NaOH

x = 32 moles

Hence, NBr3 is the excess reactant.

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3 0

3 years ago