El análisis de la Hemoglobina de caballo demostró que contiene 0,33 % de Fe en masa. Se prepara una solución acuosa disolviendo 3,75 g del material purificado en agua suficiente para obtener 0,5 L de solución la que posee una presión osmótica de 0,00270 atm. Determina la masa molar molecular de la HB de caballo.

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?

Which other elements contain the same number of outer electrons as sodium

Astudent conducts an experiment to determine how the amount of water given to a plant affects its growth. what is the independent variable for this experiment?