Concept explainers
Platinum nanoparticles of diameter ~2 nm are important catalysts in carbon monoxide oxidation to carbon dioxide. Platinum crystallizes in a face-centered cubic arrangement with an edge length of 3.924Å. (a) Estimate how many platinum atoms would fit into a 2.0-nm sphere; the volume of a sphere is (4/3). Recall that 1Å= 1×10-10 m and 1nm = 1×10-9 m. (b) Estimate how many platinum atoms are on the surface of a 2.0-nm Pt sphere, using the surface area of a sphere (4
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Chemistry, The Central Science, Volume 1, Custom For Houston Community College
- Check the box under each structure in the table that is an enantiomer of the molecule shown below. If none of them are, check the none of the above box under the table. NH ** Molecule 1 NH Molecule 4 none of the above Х Molecule 3 Molecule 2 H N wwwwww.. HN Molecule 5 Molecule 6 HN R mw... N H ☐arrow_forwardNomenclature P4S3 Would this be tetraphsophorus tri sulfide?arrow_forwardDon't used Ai solutionarrow_forward
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