subject
Chemistry, 23.04.2021 16:30 sahaitong2552

While performing a melting point determination on their purified salicylic acid a student observed through the MelTemp viewing window that the sample began to melt at 157oC. They then momentarily directed their attention away from the MelTemp device to their lab notebook in order to record the 157oC value. Upon returning to the MelTemp viewing window they see only liquid in the capillary tube and thus are unable to report the temperature at which the sample completed its melting. In response they decide to remove the capillary tube from the MelTemp, allow it to cool until the liquid re-solidifies, then repeat the melting point determination using the cooled capillary tube. Which one of the following statements is correct?
a. The student's response is following best practices
b. The student's response is not following best practices

ansver
Answers: 3

Another question on Chemistry

question
Chemistry, 22.06.2019 09:00
What type of energy do chemical bonds have? what type of energy is it converted to during chemical reactions? question 15 options: chemical bonds have kinetic energy, which is converted to potential energy during chemical reactions. chemical bonds have electric energy, which is converted to potential energy during chemical reactions. chemical bonds have heat energy, which is converted to kinetic energy during chemical reactions. chemical bonds have potential energy, which is converted to heat energy during chemical reactions.
Answers: 1
question
Chemistry, 22.06.2019 13:00
What must occur for air masses to form fronts
Answers: 3
question
Chemistry, 22.06.2019 21:00
Which activity is an innate behavior
Answers: 3
question
Chemistry, 23.06.2019 00:00
The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?
Answers: 1
You know the right answer?
While performing a melting point determination on their purified salicylic acid a student observed t...
Questions
question
Mathematics, 21.08.2019 12:20
question
Mathematics, 21.08.2019 12:20
Questions on the website: 13722363