You are analyzing a solid isolated from a reaction and find that its boiling point is over 1000 ∘C. You dissolve the compound in water solution and recrystallize it to produce some solid crystals that you use to determine that the compound is a crystalline solid. Which of the following could be the identity of the unknown solid?
Phosphorus tribromide PBr3
Silicon carbide SiC
Sodium iodide NaI
Iron (II) chloride FeCl2
thank you

  1. 👍 0
  2. 👎 0
  3. 👁 3,081
asked by Sheila
  1. Both NaI and FeCl2 boil above 1000 C but FeCl2 is difficult (if not impossible) to recrystallize from H2O; therefore, I would go with NaI.

    1. 👍 2
    2. 👎 0
  2. There are actually 2 answers to this question. So, you don't have to pick just one.

    1. 👍 2
    2. 👎 0
    posted by Mia
  3. Silicon carbide SiC

    1. 👍 0
    2. 👎 3
    posted by connie
  4. sodium iodide

    1. 👍 2
    2. 👎 2
    posted by yoyoyo
  5. The answer is NaI & FeCl2.

    1. 👍 0
    2. 👎 0
    posted by lisa

Respond to this Question

First Name

Your Response

Similar Questions

  1. chemistry

    Which of the following statements about boiling points are true? A. The boiling point of 0.1 m NaF(aq) is lower than the boiling point of 0.1 m methanol(aq). B. The boiling point of a 0.5 m aqueous solution of LiOH is the same as

    asked by Anonymous on April 18, 2013
  2. college chemistry

    Comparing the boiling points of: A) C3H8 B) C5H12 C) C2H5OH and identify the folowing statements as either True or False: Dispersion forces only for (A) Boiling point (C) > Boiling point (A) (B) exhibits hydrogen bonding Boiling

    asked by Stefanie on November 11, 2010
  3. Chemistry

    Which of the following statements about boiling points are false: A. the boiling point of 0.1 m KF(aq) is lower than the boiling point of 0.1 m ethanol(aq) B. the boiling point of a 0.5 m aqueous solution of NaOH is the same as

    asked by Timothy on September 8, 2010
  4. Chemistry

    What effect does lowering the pressure on the surface of water have on the boiling point? It increases the boiling point It decreases the boiling point the boiling point remains the same

    asked by Megan on April 28, 2010
  5. Chemistry

    When comparing the boiling points of two compounds,one is a gas and the other is a liquid,is there anything like the liquid will have a lower boiling point than the solid? The molecular mass of the liquid is lower than the solid

    asked by Shenaya on July 31, 2017
  6. Chemistry

    2Na + 2H2O------> 2NaOH + H2 H=-386kJ If 5g of sodium is added to 200g of water in an open container: (A) How much heat is absorbed/released int he reaction? (B)What volume in formed at 22C and 102kPa? (C) If boiling point

    asked by David on August 3, 2014
  7. heat

    At what point will liquid alcohol change to vapor? Boiling Melting Fusing Freezing The boiling point is the point above which the liquid state does not exist. Evaporation can occur from the liquid state at lower temperatures as

    asked by alf on August 3, 2005
  8. Chemistry

    Given the following information about xenon normal boiling point = -108 degrees C normal melting point = -112 degrees C triple point = -121 degrees C at 281 mmHg critical point = -16.6 degrees C at 58 atm a) Construct an

    asked by Christopher on March 22, 2007
  9. science

    Please help!! Methylamine has a vapor pressure of 344 torr at -25∘C and a boiling point of -6.4∘C . Find ΔHvap for methylamine. I know that ln(P1/P2)=(ΔHvap/R)(1/T2-1/T1) but it doesn't indicate whether the boiling point is

    asked by caleigh on December 12, 2016
  10. Chemistry

    What can be said about a substance with a triple point above 1atm 1) The liquid state of the substance cannot exist. 2) The gaseous state at 1 atm pressure cannot be condensed to the solid at the triple point temperature. 3) The

    asked by Trinh on August 28, 2015

More Similar Questions