Jelaskan perbedaan asam lemah dan asam kuat menurut teori arrhenius
1 answer:
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are present in
<u>Explanation:</u>
It is known that each mole of an element is composed of avagadro's number of molecules. So if we need to determine, we need to divide the number of molecules with the avagadro's number.
So,
As here molecules of carbon di oxide is given. So the moles in it will be
No. of moles of carbon dioxide =
No. of moles = moles of carbon dioxide.
Thus,
of carbon dioxide are present in
.
Answer:
Explanation:
The mass percentages of chlorine and fluorine:
Given:
Mass of chlorine = 5.753g
Mass of fluorine = 9.248g
Find the total of the masses given:
Total mass = mass of chlorine + mass of fluorine = 5.753 + 9.248 = 15.001g
% of Cl = x 100
% of Cl = x 100 = 38.35%
% of F = x 100
% of F = x 100 = 61.65%
If will reacts with
, the formula of the compound formed is
.
Ionic compounds are neutral compounds made up of positively charged ions called cations and negatively charged ions called anions.
Barium is a metal element and Nitrogen is a non-metal element, so they form an ionic compound. To make the formula of an ionic compound, first, we need to see the valence of the atoms, that is, how many electrons it can donate or it has to gain to have 8 electrons in the valence layer (octet rule).
Barium is in family 2, so it has two electrons in its valence layer, so it must donate these two electrons; Nitrogen is in family 15, so it has 5 electrons ins its valence layer and must gain 3 electrons.
Writing the ions they must form:
First came the cation (positive charge), then the anion (negative charge), and the charges must change between them, without the signal, and will inform how many atoms are necessary for which element:
Hence, If will reacts with
, the formula of the compound formed is
.
Learn more about the ionic compound here:
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