Testing for Gases
What are the General Tests for Water Vapour (Steam)?
1) Water vapour, H2O(g) has no colour or smell.
vapour has no effect on moist
or moist universal indicator paper - it is neutral.
3) Water vapour puts out a lit splint.
What are the Specific Tests for Water or Water Vapour?
1) Water or its vapour will turn cobalt chloride paper from blue to pink.
or its vapour turns
anhydrous copper(II) sulfate crystals from white to blue.
3) Water melts at 0°C and boils at 100 °C.
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