CMH 2210L Miami Dade College Melting Point Range Lab Report

CMH 2210L

Miami Dade College


Question Description

I’m studying and need help with a Chemistry question to help me learn.

1) Restate the purpose, 2) talk about what a melting point is,3) Source of error,4) Post lab questions, the tutor has to watch a class lesson on my profile in order to understand everything,I will provide the post lab questions in private along with mu username and password.

Student has agreed that all tutoring, explanations, and answers provided by the tutor will be used to help in the learning process and in accordance with Studypool's honor code & terms of service.

Final Answer


Celine Hernandez
The melting point is known as the temperature at which a compound changes its state
from solid to liquid. The purpose of today’s experiment is learning about the melting
point and how it can be used to identify a compound, whether this is pure or impure.
Generally, when the melting point is determined experimentally, it is reported as a range
with an initial temperature (Ti) that expresses the temperature at which half of the solid
turns into a liquid and a final temperature (Tf) that reports the temperature at which all
the solid is melted. There are two ways of determining the melting point; one of them
involves fast heating and the other one slow heating. Ideally, the solid should melt
slowly, not rushed and with a of 2 degrees Celsius/minute heating rate, therefore the
slow melting will give the most accurate results. For today’s results, we determined the
melting points for two unknown solids and then identified them using a list of theoretical
melting points for different compounds. For unknown #1, the fast mp was 137-145°C
and the slow mp 134-136°C. Because the slow process is the most accurate, this is the
range to take into consideration and compare with the theoretic values. In the list
provided in the h...

sofiacarrizo (563)
UC Berkeley

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