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Verdich [7]
2 years ago
5

How do you find the oxidation numbers for H3PO4

Chemistry
1 answer:
laila [671]2 years ago
3 0
The oxidation number of this atom is probably +5, but it really depends on the reaction. Could you send me the picture of the reaction? Then I can help you further :)
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What is the specific gravity of a concentrated sulfuric acid solution? A. 1.419 B. 1.000 C. 1.835 D. 1.263
GaryK [48]
Hello.

Your answer would be:

It’s about 1.84

So in your case

C. 1.835 Rounded

Plz mark me brainliest
5 0
4 years ago
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The atomic mass of an element is equal to the number of:
aleksklad [387]
Atomic mass is protons and neutrons, because they both have a mass of 1 amu. Electrons have so little mass that they can be ignored. The answer is therefore B, protons plus neutrons
4 0
4 years ago
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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:

M = moles / V

Donde:

V: Volumen de solución.

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

m = 1.6 * 169.87 = 271.792 g

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

d = m/V

V = m/d

V = 271.792 / 4.35

V = 62.48 mL

Finalmente, la cantidad de agua necesaria es:

V agua = 800 - 62.48

V agua = 737.52 mL

8 0
3 years ago
Is calcium soluble in water
Viktor [21]
<span>calcium is not soluble in water because it reacts to water. It does not dissolve in it.

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4 0
3 years ago
A rock dropped on the moon will increase its speed from 0 m/s to 4.9 m/s in about 3 seconds. What is the acceleration of the roc
musickatia [10]
A = change in v/t
= vf - vi / t
= 4.9 - 0 / 3
= 1.6 m/s^2
5 0
3 years ago
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