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they told him that he was 30.8% too low in the boiling point he had just recorded. He had recorded a boiling point of 50 degrees C on his data sheet. what is the correct boiling point of the liquid he was working with in lab?

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Edufirst

Answer:

  • 36ºC

Explanation:

When you calculate percent it is important to determine the base value, because that is the denominator of your equation:

   [tex]Percent=\dfrac{\text{change or differece}}{base}\times 100[/tex]

Here:

  • difference = Correct boling point - Recorded boiling point
  • base = Correct boiling point. Call it Tb
  • The recorded boiling point is 50ºC
  • Percent = 38% (below the correct boiling point)

Subsitute and compute:

        [tex]38=\dfrac{Tb-50\ºC}{Tb}\times 100\\\\\\0.38Tb=Tb-50\ºC \\\\Tb+0.38Tb=50\ºC\\\\Tb=50\ºC/1.38\\\\Tb=36.23\ºC\approx 36\ºC[/tex]  ← answer

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