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Vinil7 [7]
3 years ago
8

What is Anion and it’s charge for Calcium and Oxygen

Chemistry
1 answer:
LekaFEV [45]3 years ago
6 0

Answer:

Anion is negatively charged particle.

Calcium +2. Its cation

Oxygen -2

Explanation:

An anion is a charged particle with a negative charge. Anions has charge of -1

Oxygen require two electrons to complete its octet and hence its charge is -2

Calcium is  a cation and has a positive charge of +2

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Según la Organización Mundial de la Salud, el nitrato de plata ( densidad = 4.35 g/cc ) es una sustancia con propiedades cáustic
OlgaM077 [116]

Answer:

737.52 mL de agua

Explanation:

En este caso solo debes usar la expresión de molaridad de una solución la cual es:

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Como queremos saber la cantidad de agua, queremos saber en otras palabras cual es la cantidad de solvente que se utilizó para preparar los 800 mL de disolución.

Una disolución se prepara con un soluto y solvente. El soluto lo tenemos, que es el nitrato de plata. Con la expresión de arriba, calculamos los moles de soluto, y luego su masa. Posteriormente, calculamos el volumen con la densidad, y finalmente podremos calcular el solvente de esta forma:

V ste = Vsol - Vsto

Primero calcularemos los moles de soluto:

moles = M * V

moles = 2 * 0.800 = 1.6 moles

Con estos moles, se calcula la masa usando el peso molecular reportado que es 169.87 g/mol:

m = moles * PM

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Ahora usando el valor de la densidad, calcularemos el volumen de soluto empleado:

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