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(a)
Interpretation:
The location of copper in periodic table has to be identified. Also whether it occurs in nature as oxides, sulfides or in uncombined form has to be predicted.
(b)
Interpretation:
The location of zirconium in periodic table has to be identified. Also whether it occurs in nature as oxides, sulfides or in uncombined form has to be predicted.
(c)
Interpretation:
The location of palladium in periodic table has to be identified. Also whether it occurs in nature as oxides, sulfides or in uncombined form has to be predicted.
(d)
Interpretation:
The location of bismuth in periodic table has to be identified. Also whether it occurs in nature as oxides, sulfides or in uncombined form has to be predicted.
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Chapter 21 Solutions
Masteringchemistry with Pearson Etext -- Standalone Access Code Card -- For General Chemistry
- The amount of sodium hypochlorite in a bleach solution can be determined by using a given volume of bleach to oxidize excess iodide ion to iodine, because the reaction goes to completion. The amount of iodine produced is then determined by titration with sodium thiosulfate, Na2S2O3, which is oxidized to sodium tetrathionate, Na2S4O6. Potassium iodide was added in excess to 5.00 mL of bleach (density = 1.00 g/mL). This solution, containing the iodine released in the reaction, was titrated with 0.100 M Na2S2O3. If 34.6 mL of sodium thiosulfate was required to reach the endpoint (detected by disappearance of the blue color of the starch iodine complex), what was the mass percentage of NaClO in the bleach?arrow_forwardWhy does the reactivity of the alkali metals decrease from cesium to lithium?arrow_forward
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