Exam 1 Quick Review

Review!!!

100

Derive the Ideal Gas Law that solves for density.

PM = dRT

200

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)

300

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

400

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

500

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