Chem Hmwrk

posted by .

Iodine can be prepared by bubbling chlorine gas through an aqueous solution of sodium iodide:

2NaI(aq) + Cl2(g) → I2(s) + 2NaCl(aq)

How many grams of sodium iodide are required to produce 98 g of iodine?

  • Chem Hmwrk -

    mols I2 = grams/molar mass
    Use the coefficients to convert mols I2 to mols NaI. 2 mols NaI = 1 mol I2; therefore mols NaI = 2x mols I2.
    grams NaI = mols NaI x molar mass NaI.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    Hydrogen iodine is a strong acid that is used in chemical synthesis to produce some common drugs as well as a source for iodine, I2. Data for the formation of hydrogen iodine was obtained as shown. The reaction was found to be first …
  2. Chemistry

    A 500.0-mL sodium iodide (NaI) solution was prepared by dissolving 37.7g of solid NaI in water. Chlorine gas was bubbled through a 100.0-mL sample of this solution until the reaction was complete. How many grams of molecular iodine …
  3. Chemistry-iodometric titration

    In an iodometric titration, excess potassium iodide solution (KI) is added to the sample.Analyte such as chlorine liberates iodine from KI under acidic condition. Liberated iodine is titrated against standard sodium thiosulphate. The …
  4. chemistry

    When varsol and iodine in potassium iodide aqueous solution is mixed, two phases form. What are the colours in each of the 2 phases when 2ml of I2/KI aqueous solution plus 2 ml of varsol are mixed in a test tube?
  5. chem

    When varsol and iodine in potassium iodide aqueous solution is mixed, two phases form. What are the colours in each of the 2 phases when 2ml of I2/KI aqueous solution plus 2 ml of varsol are mixed in a test tube?
  6. Chemistry

    How many grams of chlorine are required to react completely with 5.00 grams of sodium to produce sodium chloride ?
  7. chemistry

    If chlorine gas is bubbled through an aqueous solution of sodium iodide, the result is elemental iodine and aqueous sodium chloride solution. What kind of reaction took place?
  8. Chem 400

    Direct reaction of solid iodine (I2) and gaseous chlorine (Cl2) produces an iodine chloride,(IxCly), a bright yellow solid. 0.678 g of iodine (I2) is mixed with 0.851 g of chlorine (Cl2). After the elements react, some chlorine is …
  9. Chem

    Sodium thiosulfate, Na2S2O3, is an important reagent for titrations. Its solutions can be standardized by titrating the iodine released when a weighed amount of potassium hydrogen iodate, KH(IO3)2 (389.912 g/mol), is allowed to react …
  10. Chemistry

    How do I find the rate law? I did a iodine clock lab but i am having trouble finding the rate law equation as well as the slow and fast reactions. I used these materials: Solution 1 o 1.0 grams Starch o 10.0 mL of Acetic Acid o 4.1

More Similar Questions