onegirl435
18.06.2020 •
Chemistry
por favor es urgente 1 -¿cuántos átomos- gramos de cloro hay en 88,75 g de dicho elemento? 2-¿calcular los moles de níquel en 18,6g de este metal y los átomos que contiene? 3-¿ determinar el peso de 3,5 moles de HNO? 4-¿hallar ¿cuántas moléculas habrá en 20g de H2 SO4? 5-¿a cuántas moléculas equivale 8 moles de cloruro de sodio?
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