1.       5 gramos de hidrogeno ocupan un volumen de 25 litros a 18°C y una presión de 430 torr. ¿Qué presión será necesaria si se cambia el recipiente por uno de 36 litros? ​

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

Compare and contrast physical changes with chemical changes.

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.