chemistry

posted by .

3) The melting point range of an unknown substance was determined to be 120-180 degree celcius. what can you tell about the purity of the unknown

  • chemistry -

    Pure substances have a melting point range of 0.5-2 degrees C. So this sample must be quite impure.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    Student in O-Chem Lab conducts a melting point experiment with an unknown compound and observes a melting range of 210 – 218C. Is this a typical range for a melting point?
  2. chemistry

    Urgent. The melting point of pure acetylsalicylic acid is 135 degrees celsius. Comment on the purity of your product based on its melting point range. My melting point range was 105-115. I do not even know where to start for this question. …
  3. Chemistry

    Substance A has a melting point of -10 degree celcius and a boiling point of 57 degree celcius. Sunstance B has a melting point of -67 degree celius and a boiling point of 15 degree celius. Room temperature is 20 degree celcius. (A) …
  4. physical

    Suppose an unknown substance has a melting temperature of 1,200 degrees Celsius and a density of 16.7 g/cm3. However, the different individual atoms that make up the element have very different melting temperatures and densities. Which …
  5. chemistry

    Melting point experiment: how do i know the calibration curve?
  6. chemistry

    this is what my lab report looks like (minus the graph of the first part) im stuck on part II I. A. unknown 1 melting point range (uncorr) 50.0-53.0 melting point range (corr) 50.2-53.2 (because of graph from part 1 of experiment) …
  7. Physical Science

    Suppose an unknown substance has a melting temperature of 1,200 degrees Celsius and a density of 16.7 g/cm3. However, the different individual atoms that make up the substance have very different melting temperatures and densities. …
  8. Organic Chemistry

    Why is the melting point of a known compound (ex. acetanilide) determined before the melting point of the unknown compound?
  9. chemistry

    Say you have two substances, A and B. A has a melting point of 300 degrees Celcius, while B has a melting point of 200 degrees Celcius. If you took a mixed melting point where the ratio of A is higher than B, what would the melting …
  10. physics

    Suppose an unknown substance has a melting temperature of 1,200 degrees Celsius and a density of 16.7 g/cm3. However, the different individual atoms that make up the substance have very different melting temperatures and densities. …

More Similar Questions