how will you test for the presence of this gas?
2007-10-17 20:22:58 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
The reaction between acids and metals :
When an acid reacts with metal, a salt and hydrogen are produced:
acid + metal -------------------> salt + hydrogen( gas )
Hydrogen- H2 :
Put a lighted splint into a sample of the gas. Burns with a "popping" sound
Hydrogen is highly soluble in many compounds composed of rare earth metals and transition metals and can be dissolved in both crystalline and amorphous metals.
2007-10-17 20:57:51 · answer #1 · answered by Anonymous · 2⤊ 0⤋
Hydrogen gas is usually liberated as acid contains hydrogen.
Test the gas liberated with burning wooden splint. If it is hydrogen gas, you will hear a "pop" sound.
more details on http://www.nasaexplores.com/show_912_teacher_st.php?id=021230121729
2007-10-17 20:36:02 · answer #2 · answered by musical_bell 3 · 1⤊ 0⤋
Acid(aq) + Metal(s)-------->Salt(aq) + Hydrogen(g)
Therefore, Hydrogen gas.
Use pop test by placing candle under test tube with gas.
However, reaction of metal with nitric acid would give nitric oxide gas instead of hydrogen.
2007-10-17 23:52:54 · answer #3 · answered by Anonymous · 1⤊ 0⤋
the two dilute hcl and dilute h2so4 react explosively with energetic metals like potassium,sodium and calcium and reasonably with much less energetic metals like magnesium, zinc etc. producing metallic salts and HYDROGEN So hydrogen gas is released while an acid reacts with metals. e.g:Mg + 2HCl >MgCl2+H2^
2016-10-13 01:12:36 · answer #4 · answered by olmeda 4 · 0⤊ 0⤋
Hydrogen is tested for by applying a flame, and listening for a pop.
2007-10-17 20:26:57 · answer #5 · answered by Gervald F 7 · 1⤊ 0⤋
hydrogen,
2007-10-17 20:36:39 · answer #6 · answered by Anonymous · 1⤊ 0⤋