Answer:
The answer to your question is: 0.0265 moles of H3PO4
Explanation:
Data
[H3PO4] = ?
Volume Ba(OH)2= 0.186 l
[Ba(OH)2] = 0.214 M
Equation
2H3PO4 (aq) + 3 Ba(OH)2 (aq) ---> 6H2O (l) + Ba3(PO4)2 (s)
Process
Molarity = moles / volume
moles = Molarity x volume
moles of Ba(OH)2 = 0.214 x 0.186
= 0.0398
Rule of three
2 moles of H3PO4 -------------------- 3 moles of Ba(OH)2
x -------------------- 0.0398 moles of Ba(OH)2
x = (0.0398 x 2) / 3
x = 0.0265 moles of H3PO4
Answer:
• All groups (columns) have the same number of valence electrons
Explanation:
Every group or column have the same number of valence electrons as a suprise. Every column is aligned in this way.
Answer:
Much of the Earth was molten because of frequent collisions with other bodies which led to extreme volcanism. While the Earth was in its earliest stage (Early Earth), a giant impact collision with a planet-sized body named Theia is thought to have formed the Moon.
Hope this helps!
The chemical reaction shows the change that took place in the reaction. The number of moles of LiOH reacted is 1.16 moles.
<h3>What is chemical reaction?</h3>
The term chemical reaction has to do with the combination of two substances to yiled a new one that is different from each of the reactants. From this reaction; .
Number of moles of CO2 = 25.5 g/44 g/mol = 0.58 moles
Since 1 mole of CO2 reacts with 2 moles of LiOH
0.58 moles reacts with 0.58 moles * 2 moles/ 1 mole
= 1.16 moles
Learn more about reaction:brainly.com/question/17434463
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Answer:
C
Explanation:
An oxyanion is an anion containing oxygen.
It should contain O and contain net negative charge on the anion.
The only option satisfying is C.
Most elements can form oxyanions, meeting the conditions of the octet rule.