Calculá la masa que corresponda en cada caso. a) Se prepara una solución con 250 cm3 de agua y 20 g de azúcar. Si la densidad del agua es de 1 g/cm3, ¿cuál es la masa de solución?
b) Se sabe que en 350 g de una solución acuosa hay disueltos 12 g de sulfato cúprico. ¿Qué masa de agua se utilizó para preparar la solución?

AYUDA POR FAVOR, ES PARA MI FINAL

A150 w lamp emits light of wavelength 590 nm uniformly in all directions. what is the photon flux (photons per unit area per unit time) on a small screen at a distance 2.3 m from the lamp? assume the photons are uniformly distributed over the surface of a sphere of radius 2.3 m.

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

Assume you measured the mass of the cart to be (500 ± 1) g and the mass of the additional mass you put on the cart to be (500 ± 1) g as well. since the scale you are using in the lab cannot measure objects heavier than 600g you will have to sum up individual pieces and propagate the error. so what would be the mass and the standard error of the cart and the mass