For the reaction 2 S(s) + 3 O2(g) → 2 SO3(g)
how much SO3 will be produced from 2.0 mol
O2 and excess S?
1. Cannot be determined unless the limiting
reactant is known.
2. 0.75 mol SO3
3. 1.3 mol SO3
4. 2.0 mol SO3

If 10.g of agno3 is available, what volume of 0.25 m agno3 can be prepared

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

Consider the reduction reactions and their equilibrium constants. cu+(aq)+e−↽−−⇀cu(s)pb2+(aq)+2e−↽−−⇀ pb(s)fe3+(aq)+3e−↽−−⇀fe(=6.2×108=4. 0×10−5=9.3×10−3 cu + ( aq ) + e − ↽ − − ⇀ cu ( s ) k =6.2× 10 8 pb 2 + ( aq ) +2 e − ↽ − − ⇀ pb ( s ) k =4.0× 10 − 5 fe 3 + ( aq ) +3 e − ↽ − − ⇀ fe ( s ) k =9.3× 10 − 3 arrange these ions from strongest to weakest oxidizing agent.