Ask questions and get helpful answers.
Ask a New Question
  1. Questions
  2. Chemistry

A sample of 0, 3220g of an ionic compound containing bromide ions (Br-) is dissolved in water and treated with excess of AgNO3. If the mass of the precipitate

of AgBr formed is 0, 6964g, answer: a) what percentage of bromine in molar mass? b) Give the mass of bromine in the compound formed. c) Which the percentage by mass of bromine in the original compound?

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩
Elizabeth
1 answer

  1. a. I have no idea what you're talking about.
    b. AgBr is compound formed.
    mass Br (not Br2) in the AgBr is
    0.6964 x (atomic mass Br/molar mass AgBr) = ?

    c.
    %Br (not Br2) in compound is
    %Br = [(answer b)/mass sample)]*100 = ?

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    DrBob222

Answer this Question

Related Questions

  1. Chemistry

    A sample of 1.55g of iron ore is dissolved in a acid solution in which the iron is converted into Fe2+. The solution formed is then titrated with KMnO4 which oxidises Fe2+ to Fe3+ while the MnO4- ions are reduced to Mn2+ ions. 92.95 mL of 0.020M KMnO4 is

  2. chem

    When ionic salt is dissolved in water the ions CO3 and K+ are formed? KCO3 K2CO3 K(CO3)2 K3CO2 I think its the second one but I don't know where the 2 comes from?

  3. Chemistry

    A 2.52g sample of a compound containing only carbon, hydrogen, nitrogen, oxygen, and sulfur was burned in excess O to yield 4.36g of CO2 and 0.892g of H20. Another sample of the same compound of mass 4.14g, yielded g of SO3. A third sample, of mass, 5.66g,

  4. biology

    1. how do molecules of a polar compound differ from those of a nonpolar compound? 2. What happnens when ionic compounds are mixed with water? 3. what is capillarity? 4. Critical Thinking: Most automobiles have water-cooled engines. What must be true about

  5. Chemistry

    A 1.42-g sample of a pure compound, with formula M2SO4, was dissolved in water and treated with an excess of aqueous calcium chloride, resulting in the precipitation of all the sulphate ions as calcium sulphate. The precipitate was collected, dried, and

  6. ap chemistry

    18. Answer the following question that relate to the analysis of chemical compounds. (a) A compound containing the elements C, H, N, and O is analyzed. When a 1.2359g sample is burned in excess oxygen, 2.241g of CO2(g) is formed. The combustion analysis

  7. AP Chemistry

    An organic compound was synthesized and found to contain only C, H, N, O, and Cl. It was observed that when .150g sample of the compound was burned, it produced .138g of CO2 and .0566g of H2O. All the Nitrogen in a different .200g sample of the compound

  8. Science

    Suppose that you heated a sample of a hydrated ionic compound in a test tube. What might you expect to see inside the test tube, near the top of the test tube? Explain please i really am stumped on this question...

  9. Chemistry

    A 0.08425 g sample of gas occupies 10.0-mL at 292.5 K and 1.10 atm. Upon further analysis, the compound is found to be 13.068% C and 86.932% Br. What is the molecular formula of the compound? Identify the geometry around each carbon atom. a)trigonal

  10. Science--Help.

    Which of the following is NOT one of the eight most common elements in Earth’s continental crust? carbon silicon oxygen aluminum The most abundant element in Earth’s continental crust (by weight) is _____. 2. oxygen silicon calcium iron 3. The central

Still need help?

You can ask a new question or browse existing questions.