3. (10 pts total) In Chemistry 10 this semester, we learned about how a change in one property of a gas causes a change in another property. These relationships were expressed in Boyle\'s, Charles\'s, Gay-Lussac\'s and Avogadro\'s Laws. a) (2 pts) Name the (quantities) of a gas that is used in the gas laws stated above. b) (4 pts) Which properties are changing in Charles\'s Law? which are constant? Charles\' Law is V,/T=V/T, c) (4 pts) Let us now look at one relationship we did NOT cover. If volume and temperature of a gas is kept constant, it is found that pressure is directly proportional to the amount of gas molecules. Write the equation that relates the pressure (P) and moles (n) of a gas at two different conditions, 1 and 2. 4. (9 pts total) The active ingredient in Tamiflu is called oseltamivir. Its structure is presented below a) (5 pts) Label the following functional groups in oseltamivir alkene, amine, amide, ester, and ether. a) (4 pts) Organic chemists synthesize oseltamivir from another molecule, shikimic acid, found in an herb called star anise. Draw in all the \"hidden\" hydrogen atoms of this structure using lines, wedges and dashes to show proper 3D molecular shape. Solution 3 A) PRESSURE(P) TEMPERATURE,(T) VOLUME,((V) NUMBER OF MOLES(n) B) PRESSURE AND MASS OF A GAS ARE CONSTANT. ( MASS CONSTANT = NUMBER OF MOLES CONSTANT) VOLUME AND TEMPERATURE ARE CHANGING C) LET P1 AND P2 BE TWO STATES OF PRESSURES OF NUMBER OF MOLES OF THE GAS BEING n1 AND n2, at CONSTANT TEMPERATURE AND VOLUME THEN PRESSURE, P IS DIRECTLY PROPORTIONAL TO THE NUMBER OF MOLES. THE EQUATION AT TWO DIFFERENT CONDITION OF PRESSURE AND MOLES P 1 /P 2 = n 1 /n 2 or P 2 n 1 = P 1 n 2 .

1. 3. (10 pts total) In Chemistry 10 this semester, we learned about how a change in one property of
a gas causes a change in another property. These relationships were expressed in Boyle's,
Charles's, Gay-Lussac's and Avogadro's Laws. a) (2 pts) Name the (quantities) of a gas that is
used in the gas laws stated above. b) (4 pts) Which properties are changing in Charles's Law?
which are constant? Charles' Law is V,/T=V/T, c) (4 pts) Let us now look at one relationship we
did NOT cover. If volume and temperature of a gas is kept constant, it is found that pressure is
directly proportional to the amount of gas molecules. Write the equation that relates the pressure
(P) and moles (n) of a gas at two different conditions, 1 and 2. 4. (9 pts total) The active
ingredient in Tamiflu is called oseltamivir. Its structure is presented below a) (5 pts) Label the
following functional groups in oseltamivir alkene, amine, amide, ester, and ether. a) (4 pts)
Organic chemists synthesize oseltamivir from another molecule, shikimic acid, found in an herb
called star anise. Draw in all the "hidden" hydrogen atoms of this structure using lines, wedges
and dashes to show proper 3D molecular shape.
Solution
3 A) PRESSURE(P)
TEMPERATURE,(T)
VOLUME,((V)
NUMBER OF MOLES(n)
B) PRESSURE AND MASS OF A GAS ARE CONSTANT.
( MASS CONSTANT = NUMBER OF MOLES CONSTANT)
VOLUME AND TEMPERATURE ARE CHANGING
C) LET P1 AND P2 BE TWO STATES OF PRESSURES OF NUMBER OF MOLES OF THE
GAS BEING n1 AND n2, at CONSTANT TEMPERATURE AND VOLUME
THEN PRESSURE, P IS DIRECTLY PROPORTIONAL TO THE NUMBER OF MOLES.
THE EQUATION AT TWO DIFFERENT CONDITION OF PRESSURE AND MOLES

2. P 1 /P 2 = n 1 /n 2
or P 2 n 1 = P 1 n 2