A reaction produces 156 mL of carbon dioxide gas collected over water at a temperature of 25.0 °C and a pressure of 99.81
kPa. Calculate the volume of CO2 at STP.

150mL

Explanation:

at stp, pressure = 1atmospheres, temperature 20°C

V=156mL

T=25°C

P=99.81kPa =99.81*0.00986923=0.9850atm

P

1

V

1

T

1

=

P

2

V

2

T

2

V

2

=

V

1

×

P

1

P

2

×

T

2

T

1

=

156 mL

×

1.053

bar

1

bar

×

273.15

K

298.15

K

=

150 mL

93.2 ml + 3920 ml = 4013 ml total  

(93.2 ml) * (2.03 m) / (4013 ml) = 0.0471 m

the volume in in l of the diluted solution would be 0.0471 m.

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