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

it should be p1 v1 = p2 v2

explanation: it gains negative electrons, therefore becoming negatively charged. as charge cannot be created, nor destroyed, only transferred, this leaves the wool positive. now that they have opposite charges, the two items attract.