Essays /

Chem Lab Essay

Essay preview

Determining the Melting Point of a Substance

The purpose of this lab is to determine the melting point of the substances naphthalene, biphenyl and a mixture of C. Data/Observation
Sample | Melting Point Range (°C) |
| Accurate trialStart Done | Naphthalene | 81 | 85 |
Biphenyl | 71 | 73 |
Mixture C | 42 | 56 |

1. The effect of the impurity o...

Read more


-56 -73 -85 1 2 3 42 56 71 73 81 85 accur amount attach becom begin binari biphenyl bond break broaden c capillari caus chang chem chlorin compar complet compon conclud conclus data/observation determin dissolv done due effect either fact first harder heat higher hydrat ice ici impur ion join lab less longer lower mean melt mixtur molecul naphthalen one organ part period place point present produc pure purpos question rang reason salt sampl sharper small sodium solid soon strong structur substanc surfac take temperatur thaw therefor thermomet time trialstart tube two urea water