Given the balanced thermochemical equation, 2 H2O(1) + H2(g) + O2 (8) AHrån = +572 kJ determine the heat associated with the reaction (grxn) when5.6 moles of O 2(g) are produced. Round and report your answer without any decimal place.

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?

Asample of air with a volume of 2.20m3 at a pressure of 105 kpa and a temperature of 30c is cooled to 10c and the pressure is reduced to 75.0 kpa. what is the new volume? 6.9 1.34 2.56 43.0 2.88

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2