Chemistry Stoichiometry

posted by .

1. Tin and oxygen gas are reacted together to form Tin (IV) oxide, a solid. If a piece of tin foil, 8.25cm x 21.5cm x 0.60mm (density = 7.28g/cm3) is exposed to oxygen and all the tin reacts, what is the mass of the oxidized tin foil? (98.4g)

I am so confused on this problem the answer is 98.4 but can anyone show me how to get to that answer??????

  • Chemistry Stoichiometry -

    You might like the following for reference:

    http://www.google.com/search?q=Chemistry++Stoichiometry+Tutorial&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a

    Sra

  • Chemistry Stoichiometry -

    Step 1. Write and balance the equation.
    Sn + O2 ==> SnO2

    Step 2. How much Sn do you have? You can find the volume (length x width x thickness but change the thickness of 0.60 mm tp 0.060 cm so that all of the units will be the same). Now you know
    mass = volume x density. You now have the density and the volume in cm^3 so you can calculate the mass.

    Step 3. Convert mass to moles. # moles Sn = grams Sn/molar mass Sn.

    Step 4. Using the coefficients in the balanced equation, convert moles Sn to moles SnO2.

    Step 5. Now convert moles SnO2 to grams SnO2. grams SnO2 = moles SnO2 x molar mass SnO2.

    I didn't do the math but if you don't get the answer, either the answer is wrong or you slipped up somewhere. Post your work if that happens and I'll find the error. Good luck.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    1. Tin and oxygen gas are reacted together to form Tin (IV) oxide, a solid. If a piece of tin foil, 8.25cm x 21.5cm x 0.60mm (density = 7.28g/cm3) is exposed to oxygen and all the tin reacts, what is the mass of the oxidized tin foil?
  2. Chemistry

    In chemistry lab we did an experiment trying to find the empirical formula of an oxide and tin. The question is "suppose some of the oxide splattered out of the crucible. How would this affect your calculated ratio of the number of …
  3. calculus

    Use differentials to estimate the amount of tin in a closed tin can with diameter 6 cm and height 14 cm if the tin is 0.046 cm thick.
  4. chemistry

    Tin metal is heated with oxygen gas to yield tin(IV) oxide. Express your answer as a chemical equation. Identify all of the phases in your answer
  5. Chemistry

    How do you find the ratio of moles of oxygen to moles of tin?
  6. Chemistry

    A compound of Tin Sulfate is decomposed in the lab to give 1.91g of Tin, 1.03 grams of Sulfur, and 2.06g Oxygen. Determine if this is a compound of Tin(II) Sulfate or Tin(IV) Sulfate.
  7. Math (Word Problem into formula)

    A chemist is studying the properties of a bronze alloy (mixture) of copper and tin. She begins with 6 kg of an alloy that is one sixth tin. Keeping the amount of copper constant, she adds small amounts of tin to the alloy. Letting …
  8. Math

    Maddy’s loaf tin has three partitioned areas in which to bake three loaves. The outside of the tin along with the partitions is made of 80 inches of material. The area of the entire loaf tin is 192 in2. What are the possible outer …
  9. math

    a closed tin is in the shape of acylinder of diameter 10cm and height 15cm.use the value 3.14 for pie to find a)the total surface area of the tin b)the value of the tin to the nearest naira if tin plate cost 450 per m2
  10. Algebra

    MLids for tin cans are stamped out of a solid sheet of tin as show how much of the tin is wasted in this process?

More Similar Questions