chemistry

posted by .

So I did an experiment at school in which we had to form 2.00 grams of precipitate by mixing 2 hydrated compounds. So for the products, obviously one of it is water, and the other 2 products are compounds, one of which, is insoluble. So when I measured the amount of precipitate it was less than 2.00 grams, I had gotten a percent yield of about 75% or 76%, so I need to address 2 sources of error, 1) why was the percent yield lower, and 2) what would cause for the percent yield to be higher than 100%?

So since my percent yield is lower than 100%, that means I added to much water to it? and if my percent yield was too high that would mean I used too much precipitate?

Please tell me if I am right, or correct me if I am wrong, thanks for your help :)

  • chemistry -

    There isn't enough information here for me to know what you've done except is very general terms. The usual reason in experiments of this type where yield is greater than 100% the problem is insufficient drying.
    If you can provide more details perhaps I can help further.

  • chemistry -

    We have to mixed 2 hydrated compounds each in a separate beaker filled with water, and then dump one of the solutions into the other and mix that, then filter the 1 solution out, so that the precipitate is caught in a filter paper, and the water is caught in an erlynmeyer flask.

    The 2 compounds mixed together were magnesium sulfate heptahydrate and sodium carbonate decahydrate, and the products are water sodium sulfate and magnesium carbonate (the precipitate)

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    I have two Questions I need help with. 1. Why do some combinations of ionic compounds form a precipitate while other ionic compounds don't?
  2. chemistry

    the diagram below shows a structural formulae of 3 cabon compounds labelled 1 2 and 3 and the eaction between compounds 1 and 2. The equation for this reaction is incomplete only the reactants are shown, the missing products being …
  3. Inorganic

    Hi, I have an lab I am doing in inorganic chemistry and it is where we synthesized our own compounds by adding together a bunhc of differnt ones. We are now asked to calculate the theoretical yield and they tell us which one is the …
  4. Chemistry

    Identify the precipitate formed when solutions of these compounds are mixed. H2SO4 + BaCl2 ==> So when you do the double replacement reaction, would the products of this chemical equation be HCl + BaSO4?
  5. Grade 12 chemistry

    For a chem lab, i was given a table that results when pairs of chemical solutions are mixed.For each set of compounds that formed a precipitate, I had to determine the precipitate. I have done that and now one of the questions i have …
  6. chemistry

    What is a special group of compounds that produce H+ ions when dissolved in water?
  7. Chemistry

    If I had a question about complex ions and the problem had a "mixture" of two compounds, how would I know if one of the products formed is going to be a solid or liquid?
  8. chemistry

    Two compounds of molecular formula respectively C2H4O and C4H8O produce a yellow orange precipitate by the reaction DNPH. a)is this indication sufficient to write the structural formulas of these two compounds?
  9. Chemistry

    I have a question about solubility rules and net ionic equations so for example : CuSO4+Ba(NO3)2----->BaSO4+Cu(NO3)2 Okay so I know BaSO4 is insoluble while Cu(NO3)is solulable, that means BaSO4 will have a precipitate while Cu(NO3) …
  10. Chemistry (chromatography)

    I had a chromatography experiment for chemistry and here is one of the questions: Did the compounds travel farther in the water or the isopropyl alcohol (rubbing alcohol)?

More Similar Questions