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Q: What is the pressure of 4 moles of helium a 50 L tank at 308 K use PV equals nRT?
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Where can one purchase a disposable helium tank?

A disposable helium tank can be purchased at your local party store. They may also be available at a Club store like Cosco or Sams. They could also be found in Walmart or Target.


How much pressure is in a water tank?

What kind of tank? How much water is in it? Is there air in the tank? What fills the tank? What kind of pressure from where and what?answerIf the tank is gravity fed, multiply .431 times the altitude that the source is above the tank. For example, the reservoir supplying my domestic water system is approximately 200 feet higher than the valley floor I live on. My water pressure is slightly over 80 psi. If the tank is pump fed, and if you have no information on the pump, you will have to put a gauge on the system.


How can you improve your well water pressure?

Well pumps have a pressure operated switch that turns the pump on at low pressure (maybe 20 psi) and off at high pressure (maybe 60 psi) The tank that stores the well water and supplies the appliances with water when the pump is off has a bladder inside it that needs to be charged with air (assuming a newer tank) check the tank for a "tire" valve with a recommeded pressure to charge the tank with (usually a stick on tag). Use a tire pressure gauge to check the bladder pressure. To do this shut off the pump. Run water until it stops from a faucet. Check and correct the pressure. Restart pump. Making sure the pump tank is properly set up will probably help your pressure problems.


Well water pressure?

the pressure depends on the well pressure tank and switch. It is normally between 30 and 70 psi in a domestic well system


Where is the pressure switch in a well water supply?

The pressure switch is usually on the pump if it's a jet pump, or at the base of the pressure tank if a submersible pump.