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bija089 [108]
4 years ago
6

Is scientific notation used to express large numbers in convenient form?

Chemistry
1 answer:
max2010maxim [7]4 years ago
5 0
Sometimes true depending on your problem
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Answer:

d dddddddddd

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}}

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

pH=12

5 0
3 years ago
Which statement describes a chemical property of sodium
Alenkasestr [34]

Answer:

Option b is show the chemical property of sodium....

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iren2701 [21]
The closer the atoms are the more the nitrogen will be come bigger or the oppisite

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