The answer is C
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Answer:
The pH of the solution lies from 11 to 12.Hence, option e is correct.
Explanation:
The value of for caffine =
Initial
0 0.01 M 0
AT equilibrium:
x (0.01 -x)M x
Solving for x:
x = 0.0096 M
The pOH of the solution is given by :
pOH = 2.02
pH= 14 - pOH = 14 - 2.02 = 11.98
The pH of the solution lies from 11 to 12.
Answer: Theoretical yield of produced by 8.96 g of S is 33.6 g
Explanation:
To calculate the moles :
The balanced chemical equation is:
According to stoichiometry :
2 moles of produce = 3 moles of
Thus 0.28 moles of will produce= of
Mass of
Thus theoretical yield of produced by 8.96 g of S is 33.6 g
Answer:
Basic oxides are oxides that show basic properties in opposition to acidic oxides and that either react with water to form a base; or react with an acid to form a salt and water which are called neutralization reactions.
Explanation:
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Answer:
There are <span>1.479×<span>10<span>−13</span></span></span> concentration of hydrogen ions <span>mo<span>lL</span></span>.
Explanation:
Because pH is a logarthmic scale, we can use the formula: <span><span>[<span>H+</span>]</span>=<span>10-pH</span></span>. Where...
=> <span>[<span>H+</span>]</span> is the concentration of hydrogen ions in the solution.
=> <span>pH</span> is the pH of the solution.
=> Where 10 is the base of the power - it's a logarithm formula.
We can now just sub in the values and solve for [<span><span>H+</span>]</span>.
<span><span><span>[<span>H+</span>]</span>=<span>10-pH</span></span><span><span>=<span>10<span>−<span>(12.83)</span></span></span></span><span>=1.479108388×<span>10<span>−13</span></span></span></span></span>
We can round (if required) to <span>1.479×<span>10<span>−13</span></span></span>.
Thus, there are <span>1.479×<span>10<span>−13</span></span></span> concentration of hydrogen ions <span><span>mol</span>L</span>.
Hope this helps :)