The point where the blue line intercepts the temperature axis is: the temperature where actual volume of gas reduces to zero or the theoretical zero volume temperature of a gas

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?

What is the most stable monatomic ion formed from nitrogen

According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons