# Chemistry

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)
2. From the information in problem 1, if air is about 21% oxygen by volume (d=1.309g/L) at 25C, atm). How many liters of air are required to completely react ith the tin foil? (76L)
3. Oxygen masks for producing O2 in emergency situations contain potassium superoxide, KO2. It reacts with CO2 and H2O in exhaled air to produce oxygen and potassium hydrogen carbonate. If a person wearing such a mask exhales 0.70g carbon dioxide perminute, how many grams of KO2 are consumed in 25 minutes? (28g)

• Chemistry -

Tin (IV) means that the resulting compound is Sn++++, or equivalent meaning:
Sn + 2O2 = SnO4

With the ATOMIC mass of tin=118.17, and 16 for O2, you should be able to complete the calculations.

• Chemistry -

Sn(IV) oxide is SnO2.
The correct equation is
Sn + O2 ==> SnO2.

• Chemistry -

Oops, thanks Dr. Bob.

• Chemistry -

Can someone explain how to do this?

## Similar Questions

1. ### Chemistry Stoichiometry

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