3 years ago

Balance the following reaction: Mg+ HCl → MgCl2 + H2

Chemistry

1 answer:

joja [24]3 years ago

7 0

Mg + 2HCl -> MgCl2 + H2

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Svetllana [295]

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2 years ago

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Diagonal lines in the graph represent the temperature of the substance is ___.

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3 years ago

How many atoms of Pb are there?

jeka94

Answer: i believe it is

602,000,000,000,000,000,000,000 atoms

Explanation:

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3 years ago

What is the ph of a solution labeled .30 trimethylamine k for trimethylamine is 7.42 x 10^4

valentina_108 [34]

Answer:the pH is 12

Explanation:

First We need to understand the structure of trimethylamine

Due to the grades of the bond in the nitrogen with a hybridization sp3 is 108° approximately, then is generated a dipole magnetic at the upper side of the nitrogen, this dipole magnetic going to attract a hydrogen molecule of the water making the water more alkaline

C3H9N+ H2O --> C3H9NH + OH-

$k=\frac{[C3H9NH]*[OH-]}{[C3H9N]}$

Then:

The concentration of the trimethylamine is 0.3 and the concentration of the ion C3H9NH is equal to the OH- relying on the stoichiometric equation. We could find the concentration of the OH- ion with the square root of the multiplication between k and the concentration of trimethylamine

[OH-]= $\sqrt{ 0.3*7.42x10^{-4}}$

[OH-]=0.01

pH=14-(-log[OH-])

pH=12

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2 years ago