Sulfur dioxide reacts with oxygen gas to form sulfur trioxide. What mass of sulfur dioxide was used up in the reaction with an excess of oxygen gas if 12.4 g of sulfur trioxide is formed?

Apeak with a retention time of 407 s has a width at half-height (w1/2) of 7.6 s. a neighboring peak is eluted 17 s later with a w1/2 of 9.4 s. a compound that is known not to be retained was eluted in 2.5 s. the peaks are not baseline resolved. how many theoretical plates would be needed to achieve a resolution of 1.5?

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al

What approach is required to balance the objectives of sustainable development? balancing the objectives of sustainable development requires a(n) .