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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

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
Weryfikacja ekspertów
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**