Chemistry

posted by .

Copper sulfate is a hydrated crystal with the formula CuSO4*5H20 and a deep blue color. when its heated, the crystals crumble and turn white. (a) propose an explanation for this change of color.
(b) what would you do to restore the blue color?

  • Chemistry -

    (a) might be the result of a chemical change of properties
    and i don't know (b) freeze it?

  • Chemistry -

    When heating a crystal of CuSO4.5H2O, the crystal suffers a loss of H2O and leaves a grey colored powder. What might you do to restore the crystal> Place it in a closed vessel with water (in a separate container) and the dry CuSO4 will absorb the water (from the water vapor) it lost when heated and the blue color will return.

  • Chemistry -

    a) ask your teacher
    b) go on YouTube so they can give you a lesson

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Honors Chemistry

    We did the gold penny lab, where we bathed a copper penny in a hot zinc-NaOH mixture to turn it a silver color, then we heated that in a flame to turn it a gold color. There are two questions that go with this lab that I don't understand, …
  2. Chemistry

    A 1.547-g sample of blue copper(II) sulfate pentahydrate, CuSO4*5H2O, is heated. The white crystals of CuSO4 that are left behind have a mass of 0.989 g. How many moles of H2O were in the original sample?
  3. Chemistry

    Hydrated copper sulfate is heated. Using the speculative chemical equation CuSO4*5H2O-->CuSo4+5H2O, show how you could have predicted, by calculations, what the final weights in the crucibles might be. Show calculations for two …
  4. chemistry

    heating copper sulfate pentahydrate will evaporate the water from the crystals. leaving anhydrous copper sulfate,. a white powder. what mass of anhydrous CuSO4 would be produced by heating 500.0g of CuSO4*5H2O
  5. chemistry

    In hydrated copper sulfate, the chemical formula is CuSO4.5H2O, while that of hydrated cobalt(II) chloride is CoCl2.6H2O. I want to ask how to determine the number of moles of water is needed to hydrate any salt. Is there a pattern …
  6. science (check please (:)

    suppose a species od flowering plant produces primarily blue flowers but also some very pale blue (almost white) flowers the blue color attracts pollinators but the white color does not herbivores feed on this plant and locate it by …
  7. Chemistry

    3.05 g of hydrated copper sulfate produce 1.94 g of anhydrous salt. Assuming complete removal of water of crystallisation, determine the formula of hydrated copper sulfate.
  8. chemistry

    3.05 g of hydrated copper sulphate produces 1.94g of anhydrous salt.assuming complete removal of all water of crystallization,determine the formula of hydrated copper sulfate
  9. chemistry

    Blue copper sulfate pentahydrate (CuSO4.5H2O) crystals were heated to give the white monohydrate. What percentage of water was lost?
  10. chemistry

    3.05 g hydrated copper sulfate produces 1.94 g of anhydrous salt.Assuming complete removal of all water of crystallisation,determine tha formula of hydrated copper sulfate.

More Similar Questions