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Hoochie [10]
2 years ago
7

Calcula el pH de estas soluciones: A-acido sulfúrico 0,0013 m B- hidróxido de socio 1,7 . 10 (-3) C- hidróxido de bario 2,2 . 10

(-4) Suponiendo disociación electrolítica incompleta calcula el pH de estas soluciones: A- Amoníaco 0,05 M B- Acido acético 0,1 M ecuaciones de disociación y calcular la concentración molar de los iones hidronio e hidroxilo: a) 5 g de ácido nítrico en 2L de solución. b) 0,4 mol de hidróxido de potasio en 2,5L de solución. Ayudaaa plss
Chemistry
1 answer:
Vladimir [108]2 years ago
4 0

Answer:

ksüqkdbkavavsü hwkfülbjvvsb

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What is the redox half equation for 3Ag2S + 2Al --> 6Ag + Al2, and identity which material is oxidized and which is reduced?
marta [7]

Answer:

Al is oxidized while Ag is reduced.

Explanation:

The complete molecular equation is;

3Ag2S + 2Al --> 6Ag + Al2S3

Oxidation half equation;

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Reduction half equation;

6Ag^+ + 6e -------> 6Ag

Overall redox reaction equation;

2Al + 6Ag^+ ----->2Al^3+ + 6Ag

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2 years ago
How many joules of energy is required to bring a five-pound (1 pound = 454 g) bag
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2 years ago
D5W is a solution used as an intervenous fluid.It is 5.0% by mass solution of the dextrose (C6H12O6) in water. if the density of
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Answer:

0.29 mol/L

Explanation:

Its density is 1.029 g/ml so in a liter (1000 mL) there is 1029 g of solution, but only 5% is dextrose.

0.05x1029=51.45

So in a liter of D5W solution there is 51.45 g of dextrose.

Dextrose molar mass iss 180.156 g/mol, so in 51.45 g of dextrose there is

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In one liter of solution there is 0.29 mol of dextrose, so the molarity of such solution is 0.29 mol/L.

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