Calcule los gramos de bromobenceno (C&H Br) que deben ser disueltos en 50 g de un solvente cuyo peso molecular es 120 g/mol y su presión de vapor a 25°C es de 70 mm Hg, si
se quiere obtener una solución con una presión de vapor de 60 mmHg.
R: 10,99 g​

Stage in which a typical star has completely stopped fusion

What must occur for air masses to form fronts

Let the ed50 of a recreational drug be defined as the amount required for 50% of a test group to feel high or get a buzz. if the ed50 value of ethanol is 470 mg/kg body mass, what dose would a 70 kg party goer need to quickly consume in order to have a 50% chance of getting a buzz? 235 mg 470 mg 32,900 mg 35,000,000 mg