How to Prepare Gases

7/31/2019 How to Prepare Gases

1/5

How to Prepare Gases

Chemistry Lab Instructions

You can use common chemistry lab chemicals and equipment to prepare several gases. A conical

flask, thistle funnel, delivery tube, pneumatic trough, and beehive are useful items to have on hand.Please make sure you are familiar with the use and functioning of the laboratory equipment you use,are aware of the characteristics of the substances (toxicity, flammability, explosivity, etc.), and takeproper safety precautions. Use a ventilation hood (fume cupboard) and keep flammable gases awayfrom heat or flame. I've tried to be as accurate as possible in my instructions, but you use them atyour own risk. For convenience, I've listed the gases in alphabetical order.

Gas Reagents Method Collection Reaction

Ammonia

NH3

Ammonium

chloride

Calcium

hydroxide

Gently heat a mixture of

ammonium chloride andcalcium hydroxide in water.

Upward

displacementof air in a

hood.

Ca(OH)2 +

2NH4Cl

2NH3 + CaCl2+ 2H2O

Carbon

DioxideCO2

Calcium

carbonate(marble chips)

5 M

Hydrochloric

acid

Add 5 M hydrochloric acid to 5

- 10 g marble chips.Upward


hood.

2HCl +CaCO3 CO2

+ CaCl2 +H2O

Chlorine

Cl2

Potassium

permanganate

Conc.Hydrochloric

acid

Add concentrated hydrochloric

acid dropwise onto a small

amount of potassiumpermanganate crystals (in

flask).

Upward

displacement

of air in ahood.

6HCl +

2KMnO4 +2H+ 3Cl2 +

2MnO2 +

4H2O + 2K+

Hydrogen

H2Zinc

(granulated)5 M

Hydrochloric

acid

Add 5 M hydrochloric acid to 5

- 10 g granulated zinc pieces.Collect over

water.

2HCl + Zn

H2 + ZnCl2

Hydrogen

ChlorideHCl

Sodium chloride

Conc. Sulfuricacid

Slowly add concentrated

sulfuric acid to solid sodiumchloride.

Displacement

of air in ahood.

2NaCl +H2SO4

Na2SO4 +2HCl

Methane

CH4

Sodium acetate

(anhydrous)Soda lime

Mix 1 part sodium acetate with

3 parts soda lime. Heat in adry pyrex test tube or flask.

Collect over

water.

CH3COONa +

NaOH

CH4+ Na2CO3

Nitrogen

N2Ammonia

Calciumhypochlorite

(bleachingpowder)

Shake 20 g calcium

hypochlorite into 100 mLwater for several minutes,

then filter. Add 10 mL conc.ammonia and heat mixture.

Use extreme caution!

Displacement

of air.2NH3 +

3CaOCl2 N2

+ 3H2O +

3CaCl2
http://chemistry.about.com/od/makechemicalsyourself/a/How-To-Make-Hydrogen-Gas.htmhttp://chemistry.about.com/od/makechemicalsyourself/a/How-To-Make-Hydrogen-Gas.htmhttp://chemistry.about.com/od/makechemicalsyourself/a/How-To-Make-Hydrogen-Gas.htm


2/5

Chloramine and explosive

nitrogen trichloride may beproduced.

Nitrogen

N2Air

Lighted

Phosphorus (orheated Fe or

Cu)

Invert a bell jar over lighted

phosphorus. Oxygen and

phosphorus combine to formphosphorus pentoxide, which

is absorbed by the water over

which the bell jar stands (maybe violent reaction), producing

phosphoric acid and leaving

the nitrogen behind.

Removal of

oxygen.

5 O2 + 4 P

P4O10

NitrogenDioxide

NO2

Copper(turnings)

10 M Nitric acid

Add concentrated nitric acid to5 - 10 g copper.

Upwarddisplacement

of air in ahood.

Cu + 4HNO3 2NO2 +

Cu(NO3)2 +

2H2O

Nitrogen

MonoxideNO

Copper

(turnings)5 M Nitric acid

Add 5 M nitric acid to 5 - 10 g

copper.Collect over

water.3Cu + 8HNO

3

2NO +

3Cu(NO3)2 +

4H2O

NitrousOxide

N2O

Sodium nitrateAmmonium

sulfate

Mix 10 g powdered sodiumnitrate and 9 g ammonium

sulfate. Heat well.

Displacementof air.

NH4NO3

N2O + 2H2O

Oxygen

O2

6% Hydrogen

peroxideManganese

dioxide

(catalyst)

Add hydrogen peroxide to

about 5 g of MnO2.

Collect over

water.

2H2O2

2H2O + O2

Oxygen

O2Potassium

permanganateHeat solid KMnO4. Collect over

water.

2KMnO4

K2MnO4 +MnO2 + O2

Sulfur

DioxideSO2

Sodium sulfite

(or sodiumbisulfite)

2 MHydrochloric

acid

Add dilute hydrochloric acid to

5 - 10 g sodium sulfite (orbisulfite).

Upward


hood.

Na2SO3 +2HCl SO2

+ H2O +2NaCl

Ads
http://zpu%28512%2Cuy+%27/z/ad/wasl.htm',450,425,'wao',100,100)http://zpu%28512%2Cuy+%27/z/ad/wasl.htm',450,425,'wao',100,100)


3/5

Bank of AmericaLearn More about Our Commitment To Lend To SmallBusinesseswww.bankofamerica.com/aheadMSA Gas DetectionAdvanced & reliable fixed gas detectors & monitors.www.msanorthamerica.comWork from Home JobsFind Real Work from Home Jobs. Apply for a Position

Today!www.findtherightjob.com

Chemistry Ads

Gas Oxygen Gas Cabinet Natural Gas Fuels Air Con Gas Hydrogen

It's easy to generatehydrogengas at home or in a lab using common household materials. Here'show to make hydrogen safely.

Make Hydrogen Gas - Method 1

One of the easiest ways to obtain hydrogen is to get it from water, H2O. This method employselectrolysis, which breaks water into hydrogen and oxygen gas.

water 9-volt battery 2 paperclips

1. Unbend the paperclips and connect one to each terminal of the battery.2. Place the other ends, not touching, into a container of water. That's it!3. You'll get bubbles off both wires. The one with more bubbles is giving off pure hydrogen. The

other bubbles are impure oxygen. You can test which gas is hydrogen by lighting a match orlighter over the container. The hydrogen bubbles will burn; the oxygen bubbles will not burn.

4. Collect the hydrogen gas by inverting a water-filled tube or jar over the wire producing thehydrogen gas. The reason you want water in the container is so you can collect hydrogen withoutobtaining air. Air contains 20% oxygen, which you want to keep out of the container in order tokeep it from becoming dangerously flammable. For the same reason, don't collect the gas comingoff both wires into the same container, since the mixture could burn explosively upon ignition. Ifyou wish, you can collect the oxygen in the same way as the hydrogen, but be aware this gas is

not very pure.5. Cap or seal the container before inverting it, to avoid exposure to air. Disconnect the battery.

Make Hydrogen Gas - Method 2

There are two simple improvements you can make to improve the efficiency of hydrogen gasproduction. You can use graphite (carbon) in the form of pencil "lead" as electrodes and you can add a

pinch of salt to the water to act as an electrolyte. The graphite makes good electrodes because it iselectrically neutral and won't dissolve during the electrolysis reaction. The salt is helpful because itdissociates into ions which increase the current flow.

2 pencils salt cardboard water battery (could go as low as 1.5 V with the electrolyte) 2 paperclips or (better yet) 2 pieces of electrical wire
http://googleads.g.doubleclick.net/aclk?sa=L&ai=By3zRdiryTrD_MKmE2wWzzO3qAbvgiKMD25bgqy3AjbcBgLe-ARABGAEgvKX3ASgIOABQo4fw0AZgycapi8Ck2A-yARNjaGVtaXN0cnkuYWJvdXQuY29tyAEB2gFSaHR0cDovL2NoZW1pc3RyeS5hYm91dC5jb20vb2QvbWFrZWNoZW1pY2Fsc3lvdXJzZWxmL2EvSG93LVRvLU1ha2UtSHlkcm9nZW4tR2FzLmh0bcgC85DXK6gDAbgDAegD-QPoAwz1AwAEAIT1AwAAABA&num=1&sig=AOD64_2B376A015-bqzOt905RwpEKK1EMw&client=ca-primedia-basic_js&adurl=http://clickserve.dartsearch.net/link/click%3Flid%3D43700003069476396%26ds_s_kwgid%3D58100000006995845%26ds_e_adid%3D12067364027%26ds_e_matchtype%3Dcontent%26ds_url_v%3D2http://googleads.g.doubleclick.net/aclk?sa=L&ai=By3zRdiryTrD_MKmE2wWzzO3qAbvgiKMD25bgqy3AjbcBgLe-ARABGAEgvKX3ASgIOABQo4fw0AZgycapi8Ck2A-yARNjaGVtaXN0cnkuYWJvdXQuY29tyAEB2gFSaHR0cDovL2NoZW1pc3RyeS5hYm91dC5jb20vb2QvbWFrZWNoZW1pY2Fsc3lvdXJzZWxmL2EvSG93LVRvLU1ha2UtSHlkcm9nZW4tR2FzLmh0bcgC85DXK6gDAbgDAegD-QPoAwz1AwAEAIT1AwAAABA&num=1&sig=AOD64_2B376A015-bqzOt905RwpEKK1EMw&client=ca-primedia-basic_js&adurl=http://clickserve.dartsearch.net/link/click%3Flid%3D43700003069476396%26ds_s_kwgid%3D58100000006995845%26ds_e_adid%3D12067364027%26ds_e_matchtype%3Dcontent%26ds_url_v%3D2http://googleads.g.doubleclick.net/aclk?sa=L&ai=By3zRdiryTrD_MKmE2wWzzO3qAbvgiKMD25bgqy3AjbcBgLe-ARABGAEgvKX3ASgIOABQo4fw0AZgycapi8Ck2A-yARNjaGVtaXN0cnkuYWJvdXQuY29tyAEB2gFSaHR0cDovL2NoZW1pc3RyeS5hYm91dC5jb20vb2QvbWFrZWNoZW1pY2Fsc3lvdXJzZWxmL2EvSG93LVRvLU1ha2UtSHlkcm9nZW4tR2FzLmh0bcgC85DXK6gDAbgDAegD-QPoAwz1AwAEAIT1AwAAABA&num=1&sig=AOD64_2B376A015-bqzOt905RwpEKK1EMw&client=ca-primedia-basic_js&adurl=http://clickserve.dartsearch.net/link/click%3Flid%3D43700003069476396%26ds_s_kwgid%3D58100000006995845%26ds_e_adid%3D12067364027%26ds_e_matchtype%3Dcontent%26ds_url_v%3D2http://googleads.g.doubleclick.net/aclk?sa=L&ai=By3zRdiryTrD_MKmE2wWzzO3qAbvgiKMD25bgqy3AjbcBgLe-ARABGAEgvKX3ASgIOABQo4fw0AZgycapi8Ck2A-yARNjaGVtaXN0cnkuYWJvdXQuY29tyAEB2gFSaHR0cDovL2NoZW1pc3RyeS5hYm91dC5jb20vb2QvbWFrZWNoZW1pY2Fsc3lvdXJzZWxmL2EvSG93LVRvLU1ha2UtSHlkcm9nZW4tR2FzLmh0bcgC85DXK6gDAbgDAegD-QPoAwz1AwAEAIT1AwAAABA&num=1&sig=AOD64_2B376A015-bqzOt905RwpEKK1EMw&client=ca-primedia-basic_js&adurl=http://clickserve.dartsearch.net/link/click%3Flid%3D43700003069476396%26ds_s_kwgid%3D58100000006995845%26ds_e_adid%3D12067364027%26ds_e_matchtype%3Dcontent%26ds_url_v%3D2http://googleads.g.doubleclick.net/aclk?sa=L&ai=By3zRdiryTrD_MKmE2wWzzO3qAbvgiKMD25bgqy3AjbcBgLe-ARABGAEgvKX3ASgIOABQo4fw0AZgycapi8Ck2A-yARNjaGVtaXN0cnkuYWJvdXQuY29tyAEB2gFSaHR0cDovL2NoZW1pc3RyeS5hYm91dC5jb20vb2QvbWFrZWNoZW1pY2Fsc3lvdXJzZWxmL2EvSG93LVRvLU1ha2UtSHlkcm9nZW4tR2FzLmh0bcgC85DXK6gDAbgDAegD-QPoAwz1AwAEAIT1AwAAABA&num=1&sig=AOD64_2B376A015-bqzOt905RwpEKK1EMw&client=ca-primedia-basic_js&adurl=http://clickserve.dartsearch.net/link/click%3Flid%3D43700003069476396%26ds_s_kwgid%3D58100000006995845%26ds_e_adid%3D12067364027%26ds_e_matchtype%3Dcontent%26ds_url_v%3D2http://googleads.g.doubleclick.net/aclk?sa=l&ai=B0UGxdiryTrD_MKmE2wWzzO3qAZDU-KYCkNWvlx_AjbcBoLR2EAIYAiC8pfcBKAg4AFDajKS2-P____8BYMnGqYvApNgPoAHo9er-A7IBE2NoZW1pc3RyeS5hYm91dC5jb23IAQHaAVJodHRwOi8vY2hlbWlzdHJ5LmFib3V0LmNvbS9vZC9tYWtlY2hlbWljYWxzeW91cnNlbGYvYS9Ib3ctVG8tTWFrZS1IeWRyb2dlbi1HYXMuaHRtqAMBuAMB6AP5A-gDDPUDAAQAhPUDAAAAEA&num=2&sig=AOD64_3YPQuROtoB3-uXneUrHW2eDwzCZw&client=ca-primedia-basic_js&adurl=http://www.msanorthamerica.com/gas-detectors.htmlhttp://googleads.g.doubleclick.net/aclk?sa=l&ai=B0UGxdiryTrD_MKmE2wWzzO3qAZDU-KYCkNWvlx_AjbcBoLR2EAIYAiC8pfcBKAg4AFDajKS2-P____8BYMnGqYvApNgPoAHo9er-A7IBE2NoZW1pc3RyeS5hYm91dC5jb23IAQHaAVJodHRwOi8vY2hlbWlzdHJ5LmFib3V0LmNvbS9vZC9tYWtlY2hlbWljYWxzeW91cnNlbGYvYS9Ib3ctVG8tTWFrZS1IeWRyb2dlbi1HYXMuaHRtqAMBuAMB6AP5A-gDDPUDAAQAhPUDAAAAEA&num=2&sig=AOD64_3YPQuROtoB3-uXneUrHW2eDwzCZw&client=ca-primedia-basic_js&adurl=http://www.msanorthamerica.com/gas-detectors.htmlhttp://googleads.g.doubleclick.net/aclk?sa=l&ai=B0UGxdiryTrD_MKmE2wWzzO3qAZDU-KYCkNWvlx_AjbcBoLR2EAIYAiC8pfcBKAg4AFDajKS2-P____8BYMnGqYvApNgPoAHo9er-A7IBE2NoZW1pc3RyeS5hYm91dC5jb23IAQHaAVJodHRwOi8vY2hlbWlzdHJ5LmFib3V0LmNvbS9vZC9tYWtlY2hlbWljYWxzeW91cnNlbGYvYS9Ib3ctVG8tTWFrZS1IeWRyb2dlbi1HYXMuaHRtqAMBuAMB6AP5A-gDDPUDAAQAhPUDAAAAEA&num=2&sig=AOD64_3YPQuROtoB3-uXneUrHW2eDwzCZw&client=ca-primedia-basic_js&adurl=http://www.msanorthamerica.com/gas-detectors.htmlhttp://googleads.g.doubleclick.net/aclk?sa=l&ai=B0UGxdiryTrD_MKmE2wWzzO3qAZDU-KYCkNWvlx_AjbcBoLR2EAIYAiC8pfcBKAg4AFDajKS2-P____8BYMnGqYvApNgPoAHo9er-A7IBE2NoZW1pc3RyeS5hYm91dC5jb23IAQHaAVJodHRwOi8vY2hlbWlzdHJ5LmFib3V0LmNvbS9vZC9tYWtlY2hlbWljYWxzeW91cnNlbGYvYS9Ib3ctVG8tTWFrZS1IeWRyb2dlbi1HYXMuaHRtqAMBuAMB6AP5A-gDDPUDAAQAhPUDAAAAEA&num=2&sig=AOD64_3YPQuROtoB3-uXneUrHW2eDwzCZw&client=ca-primedia-basic_js&adurl=http://www.msanorthamerica.com/gas-detectors.htmlhttp://googleads.g.doubleclick.net/aclk?sa=l&ai=BTcUddiryTrD_MKmE2wWzzO3qAfiPqYYD6PmG6DzAjbcBkMBYEAMYAyC8pfcBKAg4AFCylpjt_v____8BYMnGqYvApNgPoAGgm_DMA7IBE2NoZW1pc3RyeS5hYm91dC5jb23IAQHaAVJodHRwOi8vY2hlbWlzdHJ5LmFib3V0LmNvbS9vZC9tYWtlY2hlbWljYWxzeW91cnNlbGYvYS9Ib3ctVG8tTWFrZS1IeWRyb2dlbi1HYXMuaHRtgAIByAKAp4opqAMBuAMB6AP5A-gDDPUDAAQAhPUDAAAAEA&num=3&sig=AOD64_1Wq2CQEyFoFWi7ljgkrkRaqLF7Aw&client=ca-primedia-basic_js&adurl=http://www.findtherightjob.com/%3Fcampaign_id%3D13197482http://googleads.g.doubleclick.net/aclk?sa=l&ai=BTcUddiryTrD_MKmE2wWzzO3qAfiPqYYD6PmG6DzAjbcBkMBYEAMYAyC8pfcBKAg4AFCylpjt_v____8BYMnGqYvApNgPoAGgm_DMA7IBE2NoZW1pc3RyeS5hYm91dC5jb23IAQHaAVJodHRwOi8vY2hlbWlzdHJ5LmFib3V0LmNvbS9vZC9tYWtlY2hlbWljYWxzeW91cnNlbGYvYS9Ib3ctVG8tTWFrZS1IeWRyb2dlbi1HYXMuaHRtgAIByAKAp4opqAMBuAMB6AP5A-gDDPUDAAQAhPUDAAAAEA&num=3&sig=AOD64_1Wq2CQEyFoFWi7ljgkrkRaqLF7Aw&client=ca-primedia-basic_js&adurl=http://www.findtherightjob.com/%3Fcampaign_id%3D13197482http://googleads.g.doubleclick.net/aclk?sa=l&ai=BTcUddiryTrD_MKmE2wWzzO3qAfiPqYYD6PmG6DzAjbcBkMBYEAMYAyC8pfcBKAg4AFCylpjt_v____8BYMnGqYvApNgPoAGgm_DMA7IBE2NoZW1pc3RyeS5hYm91dC5jb23IAQHaAVJodHRwOi8vY2hlbWlzdHJ5LmFib3V0LmNvbS9vZC9tYWtlY2hlbWljYWxzeW91cnNlbGYvYS9Ib3ctVG8tTWFrZS1IeWRyb2dlbi1HYXMuaHRtgAIByAKAp4opqAMBuAMB6AP5A-gDDPUDAAQAhPUDAAAAEA&num=3&sig=AOD64_1Wq2CQEyFoFWi7ljgkrkRaqLF7Aw&client=ca-primedia-basic_js&adurl=http://www.findtherightjob.com/%3Fcampaign_id%3D13197482http://googleads.g.doubleclick.net/aclk?sa=l&ai=BTcUddiryTrD_MKmE2wWzzO3qAfiPqYYD6PmG6DzAjbcBkMBYEAMYAyC8pfcBKAg4AFCylpjt_v____8BYMnGqYvApNgPoAGgm_DMA7IBE2NoZW1pc3RyeS5hYm91dC5jb23IAQHaAVJodHRwOi8vY2hlbWlzdHJ5LmFib3V0LmNvbS9vZC9tYWtlY2hlbWljYWxzeW91cnNlbGYvYS9Ib3ctVG8tTWFrZS1IeWRyb2dlbi1HYXMuaHRtgAIByAKAp4opqAMBuAMB6AP5A-gDDPUDAAQAhPUDAAAAEA&num=3&sig=AOD64_1Wq2CQEyFoFWi7ljgkrkRaqLF7Aw&client=ca-primedia-basic_js&adurl=http://www.findtherightjob.com/%3Fcampaign_id%3D13197482http://googleads.g.doubleclick.net/aclk?sa=l&ai=BTcUddiryTrD_MKmE2wWzzO3qAfiPqYYD6PmG6DzAjbcBkMBYEAMYAyC8pfcBKAg4AFCylpjt_v____8BYMnGqYvApNgPoAGgm_DMA7IBE2NoZW1pc3RyeS5hYm91dC5jb23IAQHaAVJodHRwOi8vY2hlbWlzdHJ5LmFib3V0LmNvbS9vZC9tYWtlY2hlbWljYWxzeW91cnNlbGYvYS9Ib3ctVG8tTWFrZS1IeWRyb2dlbi1HYXMuaHRtgAIByAKAp4opqAMBuAMB6AP5A-gDDPUDAAQAhPUDAAAAEA&num=3&sig=AOD64_1Wq2CQEyFoFWi7ljgkrkRaqLF7Aw&client=ca-primedia-basic_js&adurl=http://www.findtherightjob.com/%3Fcampaign_id%3D13197482http://chemistry.about.com/z/js/o.htm?k=gas&d=Gas&r=http://chemistry.about.com/od/makechemicalsyourself/a/How-To-Make-Hydrogen-Gas.htmhttp://chemistry.about.com/z/js/o.htm?k=gas&d=Gas&r=http://chemistry.about.com/od/makechemicalsyourself/a/How-To-Make-Hydrogen-Gas.htmhttp://chemistry.about.com/z/js/o.htm?k=oxygen%20gas%20cabinet&d=Oxygen%20Gas%20Cabinet&r=http://chemistry.about.com/od/makechemicalsyourself/a/How-To-Make-Hydrogen-Gas.htmhttp://chemistry.about.com/z/js/o.htm?k=oxygen%20gas%20cabinet&d=Oxygen%20Gas%20Cabinet&r=http://chemistry.about.com/od/makechemicalsyourself/a/How-To-Make-Hydrogen-Gas.htmhttp://chemistry.about.com/z/js/o.htm?k=natural%20gas%20fuels&d=Natural%20Gas%20Fuels&r=http://chemistry.about.com/od/makechemicalsyourself/a/How-To-Make-Hydrogen-Gas.htmhttp://chemistry.about.com/z/js/o.htm?k=natural%20gas%20fuels&d=Natural%20Gas%20Fuels&r=http://chemistry.about.com/od/makechemicalsyourself/a/How-To-Make-Hydrogen-Gas.htmhttp://chemistry.about.com/z/js/o.htm?k=air%20con%20gas&d=Air%20Con%20Gas&r=http://chemistry.about.com/od/makechemicalsyourself/a/How-To-Make-Hydrogen-Gas.htmhttp://chemistry.about.com/z/js/o.htm?k=air%20con%20gas&d=Air%20Con%20Gas&r=http://chemistry.about.com/od/makechemicalsyourself/a/How-To-Make-Hydrogen-Gas.htmhttp://chemistry.about.com/z/js/o.htm?k=hydrogen&d=Hydrogen&r=http://chemistry.about.com/od/makechemicalsyourself/a/How-To-Make-Hydrogen-Gas.htmhttp://chemistry.about.com/z/js/o.htm?k=hydrogen&d=Hydrogen&r=http://chemistry.about.com/od/makechemicalsyourself/a/How-To-Make-Hydrogen-Gas.htmhttp://chemistry.about.com/od/elementfacts/a/hydrogen.htmhttp://chemistry.about.com/od/elementfacts/a/hydrogen.htmhttp://chemistry.about.com/od/elementfacts/a/hydrogen.htmhttp://chemistry.about.com/od/elementfacts/a/hydrogen.htmhttp://chemistry.about.com/z/js/o.htm?k=hydrogen&d=Hydrogen&r=http://chemistry.about.com/od/makechemicalsyourself/a/How-To-Make-Hydrogen-Gas.htmhttp://chemistry.about.com/z/js/o.htm?k=air%20con%20gas&d=Air%20Con%20Gas&r=http://chemistry.about.com/od/makechemicalsyourself/a/How-To-Make-Hydrogen-Gas.htmhttp://chemistry.about.com/z/js/o.htm?k=natural%20gas%20fuels&d=Natural%20Gas%20Fuels&r=http://chemistry.about.com/od/makechemicalsyourself/a/How-To-Make-Hydrogen-Gas.htmhttp://chemistry.about.com/z/js/o.htm?k=oxygen%20gas%20cabinet&d=Oxygen%20Gas%20Cabinet&r=http://chemistry.about.com/od/makechemicalsyourself/a/How-To-Make-Hydrogen-Gas.htmhttp://chemistry.about.com/z/js/o.htm?k=gas&d=Gas&r=http://chemistry.about.com/od/makechemicalsyourself/a/How-To-Make-Hydrogen-Gas.htmhttp://googleads.g.doubleclick.net/aclk?sa=l&ai=BTcUddiryTrD_MKmE2wWzzO3qAfiPqYYD6PmG6DzAjbcBkMBYEAMYAyC8pfcBKAg4AFCylpjt_v____8BYMnGqYvApNgPoAGgm_DMA7IBE2NoZW1pc3RyeS5hYm91dC5jb23IAQHaAVJodHRwOi8vY2hlbWlzdHJ5LmFib3V0LmNvbS9vZC9tYWtlY2hlbWljYWxzeW91cnNlbGYvYS9Ib3ctVG8tTWFrZS1IeWRyb2dlbi1HYXMuaHRtgAIByAKAp4opqAMBuAMB6AP5A-gDDPUDAAQAhPUDAAAAEA&num=3&sig=AOD64_1Wq2CQEyFoFWi7ljgkrkRaqLF7Aw&client=ca-primedia-basic_js&adurl=http://www.findtherightjob.com/%3Fcampaign_id%3D13197482http://googleads.g.doubleclick.net/aclk?sa=l&ai=BTcUddiryTrD_MKmE2wWzzO3qAfiPqYYD6PmG6DzAjbcBkMBYEAMYAyC8pfcBKAg4AFCylpjt_v____8BYMnGqYvApNgPoAGgm_DMA7IBE2NoZW1pc3RyeS5hYm91dC5jb23IAQHaAVJodHRwOi8vY2hlbWlzdHJ5LmFib3V0LmNvbS9vZC9tYWtlY2hlbWljYWxzeW91cnNlbGYvYS9Ib3ctVG8tTWFrZS1IeWRyb2dlbi1HYXMuaHRtgAIByAKAp4opqAMBuAMB6AP5A-gDDPUDAAQAhPUDAAAAEA&num=3&sig=AOD64_1Wq2CQEyFoFWi7ljgkrkRaqLF7Aw&client=ca-primedia-basic_js&adurl=http://www.findtherightjob.com/%3Fcampaign_id%3D13197482http://googleads.g.doubleclick.net/aclk?sa=l&ai=B0UGxdiryTrD_MKmE2wWzzO3qAZDU-KYCkNWvlx_AjbcBoLR2EAIYAiC8pfcBKAg4AFDajKS2-P____8BYMnGqYvApNgPoAHo9er-A7IBE2NoZW1pc3RyeS5hYm91dC5jb23IAQHaAVJodHRwOi8vY2hlbWlzdHJ5LmFib3V0LmNvbS9vZC9tYWtlY2hlbWljYWxzeW91cnNlbGYvYS9Ib3ctVG8tTWFrZS1IeWRyb2dlbi1HYXMuaHRtqAMBuAMB6AP5A-gDDPUDAAQAhPUDAAAAEA&num=2&sig=AOD64_3YPQuROtoB3-uXneUrHW2eDwzCZw&client=ca-primedia-basic_js&adurl=http://www.msanorthamerica.com/gas-detectors.htmlhttp://googleads.g.doubleclick.net/aclk?sa=l&ai=B0UGxdiryTrD_MKmE2wWzzO3qAZDU-KYCkNWvlx_AjbcBoLR2EAIYAiC8pfcBKAg4AFDajKS2-P____8BYMnGqYvApNgPoAHo9er-A7IBE2NoZW1pc3RyeS5hYm91dC5jb23IAQHaAVJodHRwOi8vY2hlbWlzdHJ5LmFib3V0LmNvbS9vZC9tYWtlY2hlbWljYWxzeW91cnNlbGYvYS9Ib3ctVG8tTWFrZS1IeWRyb2dlbi1HYXMuaHRtqAMBuAMB6AP5A-gDDPUDAAQAhPUDAAAAEA&num=2&sig=AOD64_3YPQuROtoB3-uXneUrHW2eDwzCZw&client=ca-primedia-basic_js&adurl=http://www.msanorthamerica.com/gas-detectors.htmlhttp://googleads.g.doubleclick.net/aclk?sa=L&ai=By3zRdiryTrD_MKmE2wWzzO3qAbvgiKMD25bgqy3AjbcBgLe-ARABGAEgvKX3ASgIOABQo4fw0AZgycapi8Ck2A-yARNjaGVtaXN0cnkuYWJvdXQuY29tyAEB2gFSaHR0cDovL2NoZW1pc3RyeS5hYm91dC5jb20vb2QvbWFrZWNoZW1pY2Fsc3lvdXJzZWxmL2EvSG93LVRvLU1ha2UtSHlkcm9nZW4tR2FzLmh0bcgC85DXK6gDAbgDAegD-QPoAwz1AwAEAIT1AwAAABA&num=1&sig=AOD64_2B376A015-bqzOt905RwpEKK1EMw&client=ca-primedia-basic_js&adurl=http://clickserve.dartsearch.net/link/click%3Flid%3D43700003069476396%26ds_s_kwgid%3D58100000006995845%26ds_e_adid%3D12067364027%26ds_e_matchtype%3Dcontent%26ds_url_v%3D2http://googleads.g.doubleclick.net/aclk?sa=L&ai=By3zRdiryTrD_MKmE2wWzzO3qAbvgiKMD25bgqy3AjbcBgLe-ARABGAEgvKX3ASgIOABQo4fw0AZgycapi8Ck2A-yARNjaGVtaXN0cnkuYWJvdXQuY29tyAEB2gFSaHR0cDovL2NoZW1pc3RyeS5hYm91dC5jb20vb2QvbWFrZWNoZW1pY2Fsc3lvdXJzZWxmL2EvSG93LVRvLU1ha2UtSHlkcm9nZW4tR2FzLmh0bcgC85DXK6gDAbgDAegD-QPoAwz1AwAEAIT1AwAAABA&num=1&sig=AOD64_2B376A015-bqzOt905RwpEKK1EMw&client=ca-primedia-basic_js&adurl=http://clickserve.dartsearch.net/link/click%3Flid%3D43700003069476396%26ds_s_kwgid%3D58100000006995845%26ds_e_adid%3D12067364027%26ds_e_matchtype%3Dcontent%26ds_url_v%3D2


4/5

1. Prepare the pencils by removing the erase and metal caps and sharpening both ends of thepencil.

2. You're going to use the cardboard to support the pencils in the water. Lay the cardboard overyour container of water. Insert the pencils through the cardboard so that the lead is submerged

in the liquid, but not touching the bottom or side of the container.3. Set the cardboard with pencils aside for a moment and add a pinch of salt to the water. You could

use table salt, Epsom salts, etc.

4. Replace the cardboard/pencil. Attach a wire to each pencil and connect it to the terminals of thebattery.

5. Collect the gas as before, in a container that has been filled with water.Make Hydrogen Gas - Method 3

You can get hydrogen gas by reacting hydrochloric acid with zinc.

hydrochloric acid (muriatic acid) zinc granulesHydrogen gas bubbles will be released as soon as the acid and zinc are mixed. Be very careful to avoid

contact with the acid. Also, heat will be given off by this reaction.

You can prepare sodium silicate or water glass from gel beads (silica) and drain cleaner (sodiumhydroxide). Sodium silicate can be used to make chemical gardens, like those that result from MagicRocks (which you canmake yourself).

Sodium Silicate Materials

All you need to make a sodium silicate solution are water, silica, and sodium hydroxide. Silica comesin those little packets labelled 'do not eat' with electronics, shoes, etc. Sodium hydroxide is readilyavailable in its pure form or can be found as drain cleaner.

6 g silica gel beads (crushed) 4-8 g sodium hydroxide (4 g for water glass, used in the magic rock project, or 8 g for the

stoichiometric ratio for sodium silicate)

10 ml waterPrepare Sodium Silicate

1. Wear proper safety gear, which includes gloves.2. Heat 4-8 grams of sodium hydroxide in 10 ml of water.3. Once the sodium hydroxide is dissolved, slowly add the 6 grams of crushed silica gel beads. Heat

the solution between additions. If the crushed beads won't dissolve, add a little more water to thesolution.
http://chemistry.about.com/od/growingcrystals/a/aa060704a.htmhttp://chemistry.about.com/od/growingcrystals/a/aa060704a.htmhttp://chemistry.about.com/od/growingcrystals/a/aa060704a.htmhttp://chemistry.about.com/od/growingcrystals/a/aa060704a.htm


5/5

Sand that you find on a beach consists of several minerals and organic matter. If you could separateout the impurities, you would have pure sand, which is silica or silicon dioxide. Here is how to preparepure sand yourself in the lab. It is an easy project that only requires a few chemicals.

Ingredients for Sand

sodium silicate (make sodium silicate yourself) sodium bisulfate waterMake Pure Sand

1. Mix together 5 ml sodium silicate solution and 5 ml water.2. In a separate container, use a glass stirrer to mix 3.5 grams sodium bisulfate into 10 mL of

water. Keep stirring until the sodium bisulfate dissolves.3. Mix the two solutions together. The resulting gel that forms at the bottom of the liquid is

orthosilicic acid.4. Place the orthosilicic acid into a heat-safe glass or porcelain dish and heat it over a burner flame

for about 5 minutes. The orthosilicic acid dries to form silicon dioxide, SiO2, which is your puresand. Sand is non-toxic, but it presents an inhalation hazard since the small particles couldbecome trapped in your lungs if inhaled. Therefore, enjoy your sand, but don't play with it likeyou might with natural sand.

These are easy instructions for making sodium carbonate, also known as washing soda or soda ash,from baking soda or sodium bicarbonate.

Make Sodium Carbonate

Sodium bicarbonateis CHNaO3 whilesodium carbonateis Na2CO3. Simply heat baking soda or sodium

bicarbonate in a 200F oven for about an hour. Carbon dioxide and water will be given off. Dry sodium

carbonate will remain.
http://chemistry.about.com/od/makechemicalsyourself/a/make-sodium-silicate.htmhttp://chemistry.about.com/od/makechemicalsyourself/a/make-sodium-silicate.htmhttp://chemistry.about.com/od/makechemicalsyourself/a/make-sodium-silicate.htmhttp://chemistry.about.com/od/factsstructures/ig/Chemical-Structures---S/Sodium-Bicarbonate.htmhttp://chemistry.about.com/od/factsstructures/ig/Chemical-Structures---S/Sodium-Bicarbonate.htmhttp://chemistry.about.com/od/factsstructures/ig/Chemical-Structures---S/Sodium-Carbonate.htmhttp://chemistry.about.com/od/factsstructures/ig/Chemical-Structures---S/Sodium-Carbonate.htmhttp://chemistry.about.com/od/factsstructures/ig/Chemical-Structures---S/Sodium-Carbonate.htmhttp://chemistry.about.com/od/factsstructures/ig/Chemical-Structures---S/Sodium-Carbonate.htmhttp://chemistry.about.com/od/factsstructures/ig/Chemical-Structures---S/Sodium-Bicarbonate.htmhttp://chemistry.about.com/od/makechemicalsyourself/a/make-sodium-silicate.htm

How to Prepare Gases

Documents

Transcript of How to Prepare Gases