Answer: 0.156 mol
Explanation:
To find the moles of 17.2 g K₂S, we need to know the molar mass to convert.
Answer:
try to see THE PIXELS, AVENGERS, JOKER, CHARLIE'S ANGEL, JUSTICE LEAGUE,IT ,THE NUN ETC
Answer:
1 oxygen atoms
Explanation:
When barium combines with oxygen to form an ionic compound, it will only require just an oxygen atom.
An ionic compound is formed due to the electrostatic attraction between oppositely charged ions
A metal loses electrons to be gained by the non - metal and in the process they attract each other with a force.
Barium has two valence electrons, to be stable, it loses the two;
Oxygen has six valence electrons, to be stable it will gain two valence electrons to form an octet.
So;
One barium atom will successfully bind with One oxygen atom to form
BaO
The Molarity of a solution = number of moles / volume.
Volume = 244ml = 0.244L
So it follows that number of moles = Molarity * volume
Number of moles = 0.135 * 0.244 = 0.03945.
Hence the number of moles = 0.03945
The pH of pure water is neutral because the concentration of hydronium ions equals that of hydroxide ions.
Answer: Option A
<u>Explanation:</u>
Water is one of the most important constituents of living being. It is said that there is no life without water. So that water need to neutral in nature to save life. Pure water is composed of hydronium and hydroxide ions. It is known that hydronium ions are acidic in nature with concentration of .
Similarly, the hydroxide ions which are basic in nature will be in same concentration as that of hydronium ions. So, as the concentration of basic and acidic elements are equal with the same strength of pH, the combination of these ions lead to formation of pure water with the pH being neutral.