Post a New Question

chemistry

posted by .

the amount of K2Cr2O7 required to prepare 100ml of its 0.05N solution

  • chemistry -

    Technically one cannot calculate a normality without knowing the reaction.
    USUALLY K2Cr2O7 goes to 2Cr^3+.
    So equivalent weight K2Cr2O7 = molar mass/6 = 294.18/6 = 49.03. I don't expect you will have seen this equation but keep it in mind; it can help you many times in the future.
    mL x N x milliequivalent weight = grams.
    You know mL, N, and mew; solve for grams.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. College General Chemistry

    How would you prepare each of the following solutions?
  2. Chemistry

    A 5g mn sample was dissolved in 100ml water. If the percentage of M (At wt =55g/mol) in the sample is about 5%. What volume is needed to prepare 100ml of approximately 3.0 x 10-3 M solution Who helps for me. The right answer 6.7ml
  3. Analytical chemisty

    How many grams of K2Cr2O7 are required to prepare 500 ml of a 0.13 N solution?
  4. analytical chemisty

    Consider the standardization of a solution of K2Cr2O7 with iron metal according to the following: Reaction: Fe + Cr2O7-2 → Fe +3 + Cr+3a. How many grams of K2Cr2O7 are required to prepare 500 ml of a 0.13 N solution?
  5. Chemistry

    "Determine the volume of a 0.925M K2Cr2O7 solution required to completely react with 5.28g of Cu." My attempted method for solving was to convert the 5.28g of Cu to moles, find moles of K2Cr2O7 using the mole to mole ratio, and then …
  6. Chemistry

    "Determine the volume of a 0.925M K2Cr2O7 solution required to completely react with 5.28g of Cu." My attempted method for solving was to convert the 5.28g of Cu to moles, find moles of K2Cr2O7 using the mole to mole ratio, and then …
  7. chemistry

    A procedure calls for 100ml of 20% H2SO4, SG=1.14. How much of the concentrated acid (98%), SG=1.84, must be diluted with water to prepare 100ml of acid of the required strength?
  8. Chemistry

    An experiment calls for 100ml of 0.1M copper(II) sulfate solution. Write a step-by-step procedure for a science teacher to make 100ml of 5M stock solution and the required diluted solution.
  9. Analytical chemistry

    an 0.5031 gram sample of iron ore is determined through redox titration using K2Cr2O7. The sample was dissolved in HCl and all the iron was converted to the 2+ state. Titration to the endpoint required 24.34 mL of 0.01887 mol/L K2Cr2O7. …
  10. Science, chemistry

    During the experiment, 100ml will be required to prepare 0.5M solution of NaNO3. Calculate the mass of NaNO3 in grams that will be required.

More Similar Questions

Post a New Question