Review!!!
Derive the Ideal Gas Law that solves for density.
PM = dRT
What are the SI units for the constants S & R given the following equation:
(760 mmHg) (72 cm3) = (39.72 kD) (7.2 Ra) (S)
(760 atm) (72 L) = (39.72 mol) (7.2 K) (S)
S = (cm3 * mmHg)/(kD * Ra)
R = (L * atm)/(mol * K)
Rearrange the Total Gas Law for each of the following scenarios:
Constant Pressure
Constant Temperature
Constant Volume
Constant Pressure & Constant Volume
Constant Pressure:
V1/T1 = V2/T2
Constant Temperature:
P1V1 = P2V2
Constant Volume:
P1/T1 = P2/T2
Constant Pressure & Constant Volume:
1/T1 = 1/T2
Complete the chemical reaction equations (with states of matter) for each of the following reactions. Be sure to consider solubility rule exceptions, natural states of matter, and the reactivity gradient.
Identify the spectator ion(s) for each reaction.
Aluminum + Hydrochloric Acid -->
Lead(II) Nitrate + Potassium Iodide -->
Copper + Zinc Sulfate -->
2Al(s) + 6HCl(aq) --> 2AlCl3(aq) + 3H2(g)
Spectator Ion: Cl-
Pb(NO3)3(aq) + 2KI(aq) --> PbI2(s) + 2KNO3(aq)
Spectator Ions: K+, NO3-
Cu(s) + ZnSO4(aq) --> No Reaction
Spectator Ions: None
For their C125 lab, an IUPUI freshman obtains an acid (HCl) with unknown molarity and 50 mL of 7.2% solution of base Na2CO3. If 39.72 mL of the titrant were required to reach the end point, what is the molarity of the original HCl solution?
Assume the density of each aqueous solution is identical to that of water.
Na2CO3 + 2HCl → 2NaCl + H2O + CO2
1.71 M