Two more question about chemistry thanks?

J

Jennifer

New member
use the ideal law to calculate the pressure exerted by 10 moles of gas in a 5 L container at 270 K?


USE THE IDEAL LAW TO CALCULATE THE NUMBER OF GAS NEEDED TO FILL A VOLUME OF 4 L AT A PRESSURE OF 2ATM AND A TEMPERATURE OF 20 DEGREES CELSIUS
 
PV=nRT where P=pressure, V=volume, n= no. of moles, R=ideal gas constant, 0.0821 L atm/mol K and T=temperature

PV=nRT
1. Given
n= 10 mol
V=5 L
T=270 K
P=nRT/V
P=[10 mol (0.0821 L atm/mol K) (270 K)]/ 5 L
P=44 atm

2. Given
V= 4 L
P= 2 atm
T= 20 degrees Celsius=293 K
n=PV/RT
n=[2 atm (4 L)] / [(0.0821 L atm/mol K) (293 K)]
n=0.33 mol
 
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