Fill one balloon with helium (or oxygen), another with hydrogen, another with a mix of hydrogen (2/3) and oxygen (1/3). Use fishing line and duct tape to suspend the balloons about 10 feet in the air and at least 3 feet apart, either from the floor or from a table or lab bench. Also, how much does a hydrogen balloon cost?
A new commercial-made hot air balloon will cost in the neighborhood of $30,000 to $40,000. The propane used to fuel the burner which heats the air inside the envelope generally costs $30-$40 and lasts for one to two hours of flight.
Subsequently, question is, can you make a balloon float without helium? Because Helium is lighter than air, but it is not the only gas we can fill the balloon, we may use hydrogen gas as well. The density of hydrogen gas is 1/2th of the mass of helium gas so we can consider it to make a floating balloon.
Also know, how do you make a balloon fly at home?
Make a balloon fly at home without Helium. Chemical reaction is : 2Al + 2NaOH + 6H2O == 2NaAl(OH)4 + 3H2 This experiments explains how to produce Hydrogen gaz from daily basis objects. DiHydrogen have a higher density than air so it flies. Then the hydrogen is fired to show the explosion.
Can hydrogen be used for balloons?
Hydrogen is another gas lighter than air; it's even lighter than helium. Hydrogen, however, is not used in balloons and this demonstration shows why. Helium is a special gas called a Noble Gas, which means it doesn't burn. When a match is held near a helium-filled balloon, the balloon pops.
Related Question Answers
How do you make a balloon fly with baking soda?
Pour two teaspoons of baking soda into your balloon, and pour half a cup of acetic acid into the bottle. Don't add too much soda! Insert the bottleneck into the balloon's neck and straighten the balloon: the baking soda in the balloon will fall into the bottle and meet the vinegar. Which gas is used in filling a balloon?
Helium gas
Do air filled balloons float?
Air-filled balloons do not float. Messages, Graphics, and Designs – One similarity between the two types of balloons is that both can be can be enhanced with written messages, graphics, and designs. Why don't they use hydrogen in balloons?
Because helium is lighter than air, a helium balloon rises. Hydrogen is another gas lighter than air; it is even lighter than helium. Hydrogen is not used in balloons and this demonstration shows why. This is because hydrogen burns very easily. Can a balloon reach outer space?
A helium-filled balloon can float very high up into the atmosphere, however, it cannot float up into outer space. The air in Earth's atmosphere gets thinner the higher up you go. This happens at about a height of 20 miles (32 kilometers) above Earth's surface. So, this is as far as a helium balloon can rise. Do they use helium in hot air balloons?
All modern Roziere balloons now use helium as a lifting gas. How many hydrogen balloons does it take to lift a person?
If you weigh 50 kilograms (about 110 pounds), then you weigh 50,000 grams. Divide your 50,000 grams by the 14 grams per balloon and you find that you need 3,571.42 balloons to lift your weight. You might want to add 500 more if you actually would like to rise at a reasonable rate. Are hydrogen balloons flammable?
This is why the balloon filled with helium does nothing more than pop. Hydrogen gas is very flammable. This is why the balloon filled with hydrogen ignites. The heat given off by the candle provides the activation energy required for the reaction that produces water from hydrogen and oxygen. Can a hot air balloon be steered?
Hot air balloons have no built-in mechanism for steering or propulsion. It uses the speed and direction in which the wind travels to move. Pilots place the balloon at different altitudes at certain times in the flight to change the direction of the flight path. What are hot air balloons filled with?
Balloon, large airtight bag filled with hot air or a lighter-than-air gas, such as helium or hydrogen, to provide buoyancy so that it will rise and float in the atmosphere. How much hydrogen is needed to lift a person?
To lift a 200 pound person, you would need a spherical bag of hydrogen about 18 feet across. How much weight can a hydrogen balloon lift?
Hydrogen has a net lifting capacity of about 71 lbs per 1000 cubic feet. So a 30 foot balloon, assuming 30 feet is the diameter of the balloon and it is shaped spherically, has a volume of 14,137 cubic feet. That equates to about 1,003 pounds of lifting capacity. Can you make helium?
Helium is generated underground by the radioactive decay of heavy elements such as uranium and thorium. Helium can also be produced by liquefying air and separating the component gases. The production costs for this method are high, and the amount of helium contained in air is very low. How many balloons can 1 cylinder fill?
HEYA!!! Well the total no. of balloons that could be filled from one cylinder of gas is : → 741 balloons. What percentage of helium is used in balloons?
7 percent
Can you use nitrogen to fill balloons?
Liquid nitrogen is sort of the best of both worlds as balloon-filling substances go: as a liquid that converts to gas rapidly as it's exposed to normal temperatures, it's equal parts air balloon and “water” balloon. Can you inflate balloons with nitrogen?
The only way a nitrogen balloon would float is if you effectively made it into a hot air balloon. Nitrogen is 28 grams, not surprising since most of the density of air is due to nitrogen. A balloon filled with Neon would float, if you could afford the high price of inflating one with this rare inert gas. Is nitrogen gas filled in balloon?
When you blow up a balloon with your breath, you're filling it with a mixture of nitrogen, oxygen, and a little bit of carbon dioxide. In our example, the balloon filled with nitrogen, oxygen, and carbon dioxide is the rock, and the atmosphere around us (made up of nitrogen and oxygen) is the water. Which gas is lighter than air?
Neon is lighter than air (density 0.900 g/L at STP, average atomic mass 20.17 g/mol) and could lift a balloon. Like helium, it is non-flammable. Would a balloon filled with carbon dioxide rise?
Carbon dioxide is denser than air so if the same volume of the two gasses is the same (one balloon), the carbon dioxide balloon will be heavier and will fall faster when dropped from the ceiling. Does nitrogen float or sink in air?
Nitrogen gas is only slightly lighter than air and readily mixes with air at room temperature. Cold vapors are more dense and will settle. Liquid nitrogen, a cryogenic liquid, has a very low boil- ing point of –320°F. 
