Scuba Tanks: A popular scuba tank is the “aluminum 80,” so named because it can deliver...

Scuba Tanks: A popular scuba tank is the “aluminum 80,” so named because it can deliver 80 cubic feet of air at “normal” temperature (72°F) and pressure (1.00 atm, 14.7 psi) when filled with air at a pressure of 3000 psi. A particular aluminum 80 tank has a mass of 15 kg when empty. What is its mass when filled with air at 3000 psi?

Homework Answers

Answer #1

V = 80 ft3 of T = 72F, P = 1 atm air at P = 3000 psi

m = 15 kg of empty

find mass when filled with air...

Apply Ideal Gas Law,

PV = nRT


P = absolute pressure

V = total volume of gas

n = moles of gas

T = absolute Temperature

R = ideal gas constant

PV = nRT

n = PV/(RT)

P = 3000 psi = 3000/14.7 = 204.081 atm

V = 80ft3 = 2265.35 Liters

T = 72F = 22°C = 22.2+273.15 K = 295.35 K

n = (1)(2265.35)/(0.082*295.35)

n = 93.537 mol of air

mass = mol*MW = 93.537*29 = 2712.573 g = 2.71 kg

Total mass = 15 + 2.71 = 17.71 kg of tank + air

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
Active Questions
  • Babaloo leather company produces briefcases from leather, fabric, and synthetic materials in a single production department....
    asked 47 seconds ago
  • (3)       A Breakeven Analysis is a powerful management tool, and one that is critical in planning, decision-making,...
    asked 3 minutes ago
  • Comparing Twitter, Pandora and Target, which one describes the user obligation to avoid trademark and copyright...
    asked 3 minutes ago
  • Determine the maximum radius Earth's Moon would have to have in order for it to be...
    asked 3 minutes ago
  • Assuming that each of the following reversible reactions has reached a state of equilibrium, indicate with...
    asked 4 minutes ago
  • Pacific Marine services has been offered a contract to provide highly classified services to the U.S....
    asked 9 minutes ago
  • In the Hershey/Chase experiment phage proteins and DNA were radioactively labeled and allowed to inject coding...
    asked 15 minutes ago
  • How many H atoms are in 92.5g of isopropanol (rubbing alcohol), C3H8O? Enter your answer in...
    asked 15 minutes ago
  • Please I really need the right answers for this question with all the correct steps, formulas,...
    asked 15 minutes ago
  • Using Kow data, rank the following compounds on the basis of lowest to highest degree of...
    asked 15 minutes ago
  • Define the price elasticity of supply. Explain why the price elasticity of supply might be different...
    asked 18 minutes ago
  • Assets Liabilities Reserves $50,000 Deposits $200,000 Loans $150,000 Using the table above, answer the following questions:...
    asked 19 minutes ago