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Lead (IV) hydroxide, Pb (OH)4, also called ortho-plumbic acid, is the notional conjugate acid of the ortho- plumbate (IV) ion, PbO4− 4, found in compounds such as calcium orthoplumbate, Ca2PbO4. [citation needed] Like its tin analog Sn (OH)4, Pb (OH)4 has not been isolated.
Careful hydrolysis of lead(II) acetate solution yields a crystalline product with a formula 6PbO·2H 2 O or Pb 6 O 4 (OH) 4. [3] This material is a cluster compound, consisting of an octahedron of Pb centers, each face of which is capped by an oxide or a hydroxide. The structure is reminiscent of the Mo 6 S 8 subunit of the Chevrel phases. [4]
The molar mass of atoms of an element is given by the relative atomic mass of the element multiplied by the molar mass constant, M u ≈ 1.000 000 × 10 −3 kg/mol = 1 g/mol. For normal samples from earth with typical isotope composition, the atomic weight can be approximated by the standard atomic weight [ 2 ] or the conventional atomic weight.
Contents. Lead carbonate. Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Lead (II) carbonate is the chemical compound with the chemical formula PbCO3. It is a white, toxic solid. [ 2 ] It occurs naturally as the mineral cerussite.
Lithium hydroxide is used in breathing gas purification systems for spacecraft, submarines, and rebreathers to remove carbon dioxide from exhaled gas by producing lithium carbonate and water: [ 15 ] 2 LiOH·H2O + CO2 → Li2CO3 + 3 H2O. or. 2 LiOH + CO2 → Li2CO3 + H2O. The latter, anhydrous hydroxide, is preferred for its lower mass and ...
Lead (II) phosphate is an ionic compound with chemical formula Pb 3 (P O 4) 2. Lead (II) phosphate is a long-lived electronically neutral reagent chemical. [ 2 ] Despite limited tests on humans, it has been identified as a carcinogen based on tests on animals conducted by the EPA. [ 3 ] Lead (II) phosphate appears as hexagonal, colorless ...
Lead's close-packed face-centered cubic structure and high atomic weight result in a density [23] of 11.34 g/cm 3, which is greater than that of common metals such as iron (7.87 g/cm 3), copper (8.93 g/cm 3), and zinc (7.14 g/cm 3). [24] This density is the origin of the idiom to go over like a lead balloon.
Infobox references. Lead (II) acetate is a white crystalline chemical compound with a slightly sweet taste. Its chemical formula is usually expressed as Pb (CH3COO)2 or Pb (OAc)2, where Ac represents the acetyl group. Like many other lead compounds, it causes lead poisoning. Lead acetate is soluble in water and glycerin.