Post a New Question

Chemistry

posted by .

"will .250 M CuSO4 power a battery the same as .100 M CuSO4? or will it be weaker?"

  • Chemistry -

    "power" is a rather loose term here. Power depends on current flow, and the stronger electrolye will allow for better current flow, but this is a very general statement.

  • Chemistry -

    I don't know what you mean by weaker or stronger. However, for the Cu half cell, the Nernst equation is
    E = Eo - (0.0592/2)*log(Cu/Cu^+2)
    Eo for Cu = 0.337 written as a reduction.
    As the solution becomes more dilute the denominator is smaller and the fraction is larger. The log of a larger number is greater and that times a negative sign gives that part of the equation a more negative value. That added to a positive number (0.337 for Cu) makes the number smaller. So the voltage of the cell will be smaller (everything else being equal) and assuming the Cu/Cu^+2 is the negative electrode of the cell. The cell will last longer, however, for the higher concn.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    Calculate the mass of the solid you must measure out to prepare 100 mL of 0.025 M CuSO4. Note that this salt is a hydrate, so its formula is CuSO4⋅5H2O. You must include the waters of hydration when calculating the formula weights. …
  2. Chemistry

    Answer the following question about copper (II) sulfate pentahydrate: a)how much water (in g) is there in 10.0 g of the compound listed above?
  3. Chemistry

    If you needed 2.50g of CuSO4 for a reaction but only had CuSO4 * 5H2O available, how many g would you need to use to get the same number of moles of CuSO4?
  4. Chemistry

    Anhydrous CuSO4 can be used to dry liquids in which it is insoluble. The CuSO4 is converted to CuSO4.5H2O, which can be filtered off from the liquid. What is the minimum mass of anhydrous CuSO4 needed to remove 12.4g H2O from a tankful …
  5. Chemistry

    Anhydrous CuSO4 can be used to dry liquids in which it is insoluble. The CuSO4 is converted to CuSO4 x 5H20, which can be filtered off from the liquid. What is the minimum mass of anhydrous CuSO4 needed to remove 12.6 g H20 from a …
  6. chemistry

    A sample of a hydrate of CuSO4 with a mass of 250 grams was heated until all the water was removed. The sample was then weighed and found to have a mass of 160 grams. What is the formula for the hydrate?
  7. chemistry

    Determine the mass of CuSO4.5H20 needed to make 250 mL of a .100M CuSO4.5H20 aqueous solution..
  8. chemistry

    @20*C solubility - 22g CuSO4 / 100g H2O @40*C solubility - 42g CuSO4 / 100g H2O which is saturated and unsaturated a. @20*C is 6g CuSO4 / 25g H2O b. @20*C is 30g CuSO4 / 150g H2O c. @40*C is 99g CuSO4 / 250g H2O please show work thanks
  9. CHEMISTRY

    Hi!! pls i need help! 1) Mg + Al2(So4)3 2)Fe + CuSO4 3)Mg + CuSO4 4)Zn + CuSO4 5)Mg + FeSO4 FOR ALL 5: a)balanced eq b)ionic equation c) net ionic
  10. chemistry

    how much CuSo4•5H2O will precipitate from a aq. soln of CuSO4, 25g dissolved in min amnt of water at 60C then cooled at 0C. Solubility of CuSO4 at 60C in 100 mL H2O is 40 g and in 0C is 15g.

More Similar Questions

Post a New Question