A substance with equal numbers of H+ ions and OH- ions is a basic solution. True False
2 answers:
Answer: False
Explanation:
pH or pOH is the measure of acidity or alkalinity of a solution.
pH is calculated by taking negative logarithm of hydrogen ion concentration.
Acids have pH ranging from 1 to 6.9, bases have pH ranging from 7.1 to 14 and neutral solutions have pH equal to 7.
When the concentration of , the solution is neutral,
>
, the solution is acidic and if
<
, the solution is basic.
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Considering the definition of percent yield, the percent yield is 76%.
<h3>Percent yield</h3>The percent yield is the ratio of the actual return to the theoretical return expressed as a percentage.
The percent yield is calculated as the experimental yield divided by the theoretical yield multiplied by 100%:
where the theoretical yield is the amount of product acquired through the complete conversion of all reagents in the final product, that is, it is the maximum amount of product that could be formed from the given amounts of reagents.
<h3>Percent yield in this case</h3>In this case, you know:
- actual yield= 0.532 moles
- theorical yield= 0.700 moles
Replacing in the definition of percent yield:
Solving:
<u><em>percent yield= 76%</em></u>
Finally, the percent yield is 76%.
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