Hola, podrían reseolverme estos problemas? Principalmente el último. Gracias

1. Al mezclar una disolución acuosa de CaCl2 con otra de AgNO3 se forma un precipitado de cloruro de plata:

Se mezcla un volumen de 15,0 ml de una disolución 0,30 M de CaCl2 con 30 ml de una disolución 0,05 M de AgNO3. Calcula los gramos de AgCl que precipitarán.
2. Determina el grado de pureza de un mármol (CaCO3) si al descomponerse 125 g del mismo se desprenden 20 litros de dióxido de carbono medidos a 15 ºC y 1 atm.
3. A partir de 120 g de KClO3 se obtuvieron a 18 ºC y a la presión de 740 mmHg, 20 L de oxígeno. ¿Cuál fue el rendimiento de la reacción?

4. Para la obtención de bromobenceno se hacen reaccionar 300 cm3 de benceno (d = 0,89 g/cm3) en exceso de bromo.

Determina la masa de bromobenceno obtenido si el rendimiento de la reacción es del 65 %.

Listen base your answer to the question on the information below. propane is a fuel that is sold in rigid, pressurized cylinders. most of the propane in a cylinder is liquid, with gas in the space above the liquid level. when propane is released from the cylinder, the propane leaves the cylinder as a gas. propane gas is used as a fuel by mixing it with oxygen in the air and igniting the mixture, as represented by the balanced equation below. c3h8(g) + 5o2(g) → 3co2(g) + 4h2o() + 2219.2 kja small amount of methanethiol, which has a distinct odor, is added to the propane to consumers detect a propane leak. in methanethiol, the odor is caused by the thiol functional group (–sh). methanethiol, ch3sh, has a structure that is very similar to the structure of methanol. what is the correct structural formula for a molecule of methanethiol

Which statement best describes the he properties of iconic compounds ?

If a simple machine aduces the strength of a force, what must be increased? the speed of the input force the work the simple machine performs the size of the simple machine the distance over which the force is applied