By reacting formaldehyde with alkanolamine or paraformaldehyde with alkanolamine below temperature of 50 degrees celcius.
This question may be about preparing H2S (or maybe hydrogen) with Kipp's apparatus.
Nitric acid (HNO3) is a strong oxidizing agent and would react with hydrogen sulfide (H2S) to form sulfur, sulfur dioxide, and water. Therefore, it is not suitable for preparing H2S as it would not result in a clean synthesis and may lead to unwanted byproducts.
To prepare for a Christmas scavenger hunt one would need to have all gifts wrapped and ready to be hidden. Once hiding places have been decide upon, clues would need to be written. These clues should be clever and could be little excerpts from popular Christmas stories or poems.
Add an acid to Na2S.It will emit H2S.
H2S is a polar compound.It is not ionic.
The pH of a solution containing H2S would be acidic, as H2S is a weak acid. The exact pH value would depend on the concentration of H2S in the solution.
Hydrosulfuric acid is H2S. H2S (aq) (H2SO4 is sulfuric acid). The acids with "hydro" at the start of their names are all derived from dissolved gases, e.g. hydrochloric acid is aqueous hydrogen chloride, hydrocyanic acid is aqueous hydrogen cyanide etc.
H2S is a gas.It smells like rotten eggs.
H2S do not have bleaching properties.So it do not discolor
The formula for hydrosulfuric acid is H2S.
It is known as hydrosulfuric acid. Not to be confused with sulfuric acid which is H2SO4
To find the number of moles of hydrogen sulfide, divide the given mass by the molar mass of hydrogen sulfide. The molar mass of hydrogen sulfide is approximately 34.08 g/mol. Thus, 64.6 g / 34.08 g/mol = 1.9 moles of hydrogen sulfide in the sample.