Charles's Law.
<u>V1</u><u> </u> = <u>V2</u>
T1 T2
V1 = 720 mL
T1 = 22°C
T2 = 106°C
V2 = ?
then,
<u>7</u><u>2</u><u>0</u><u> </u> = <u>V2</u><u> </u>
22 106
V2 = 3469 mL
Exothermic is a chemical reaction in which heat is released. Lighting a candle is an example of an exothermic because the flame is the heat being released.
Ideal gas law: PV = nRT
P-pressure
V-volume
n-number of moles(m/M)
R-constant
T- temperature
State given info:
V=10L
T=298k
P=203kPa
R=8.31(only for kPa, for pressure at atm use 0.08206)
Sub in:
(203kPa)(10L)=n(8.31)(298)
Rearrange:
n= (203)(10) / (8.31)(298)
n = 0.819745mol in gas sample
Benedict's solution is used to test simple sugars, such as glucose. It is blue solution, when sugar is present, it turns to orange / brick red. Depends on the concentration of sugar.
