If 2087 kj of energy reaches a square meter of the united states in a hour, how much total solar energy reaches the united states per hour? the entire area of the united states is 9,158,960 km2

The ksp of srso4 is 3.2 × 10–7. what is the equilibrium concentration of sulfate ion in a 1.0-l solution of strontium sulfate to which 0.10 mol of sr(ch3co2)2 has been added? a. 3.2 × 10–8m b. 3.2 × 10–6m c. 5.7 × 10–4m d. 8.0 × 10–4m