50.7 MB (4.3 MB compressed)
3434 x 5160 pixels
29.0 x 43.7 cm ⏐ 11.4 x 17.2 in (300dpi)
GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY
Lead chromate precipitate, 1 of 3. Lead(II) chromate (PbCrO4) precipitate (bright yellow) formed by adding 0.25 M solution of potassium chromate (K2CrO4) to 0.20 M solution of lead nitrate (Pb(NO3)2). The reaction is K2CrO4 + Pb(NO3)2 -> PbCrO4 + KNO3. This is an example of a double replacement reaction. Lead chromate is the original chrome yellow paint pigment.
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