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Igoryamba
3 years ago
11

1. A chemical equation is balanced when *

Chemistry
2 answers:
wel3 years ago
7 0

Answer:

If each side of the equation has the same number of atoms of a given element, that element is balanced. If all elements are balanced, the equation is balanced.

lubasha [3.4K]3 years ago
6 0

Answer:1 Answer. A chemical equation is balanced when the number of each kind of atom is the same on both sides of the reaction,,

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A certain solution of methylamine has a pOH of 6.8, while a solution of pyridine has a pOH of 6.0. Which solution has a greater
Liono4ka [1.6K]

Answer:

Pyridine solution has a greater concentration of hydroxide ions.

Explanation:

The pOH of the solution is defined as negative logarithm of hydroxide ion concentration in a solution.

pOH=-\log [OH^-]

  • Higher the value of pOH lessor will be the hydroxide ion concentration and higher the concentration of hydrogen ions in the solution .
  • Lower the value of pOH higher will be the hydroxide ion concentration and lower the concentration of hydrogen ions in the solution.

1) The pOH of the methylamine = 6.8

6.8=-\log[OH^-]

[OH^-]=1.5848\times 10^{-7} M

2) The pOH of the pyridine = 6.0

6.0=-\log[OH^-]

[OH^-]=0.000001 M=1.0\times 10^{-6} M

Pyridine solution has a greater concentration of hydroxide ions than the solution of methylamine.

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4 years ago
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A and D then I guess

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3 years ago
why is the frequency of the C=O stretch in the hydrogenation product higher than in ethyl cinnamate?
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The hydrogenation of ethyl cinnamate will result to an ester which can be a racemic mixture of products or just a meso compound depending on the structure of the ethyl cinnamate (cis or trans). The ester will produce a frequency of C=O stretch of <span>1750 - 1735 (s.</span>
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