Problemas
Agas has a pressure of 2.0 atm a volume of 4.0 L, and a temperature of 300 K. How many moles of gas are present? Use R=0.0821Lcdot atm/(molcdot K) Desmos scientific calculator 0.16 mol 0.33 mol 0.74 mol 0.54 mol
Roztwór
Hugo
maestro · Tutor durante 5 años
4.5
(173 Votos)
Respuesta
To solve this problem, we will use the **Ideal Gas Law**:
Where: -
is the pressure (in atm) -
is the volume (in liters) -
is the number of moles (what we are solving for) -
is the ideal gas constant (\( 0.0821 \, \text{L·atm/(mol·K)} \)) -
is the temperature (in Kelvin)### Step 1: Rearrange the formula to solve for
:
### Step 2: Substitute the given values:-
-
- \( R = 0.0821 \, \text{L·atm/(mol·K)} \)-
### Step 3: Perform the calculations:1. Multiply
and
:
2. Multiply
and
:
3. Divide
by
:
### Step 4: Round to two decimal places:
### Final Answer:The number of moles of gas present is **0.33 mol**.Correct option: **0.33 mol**