What fraction of original present at formation of earth
The age of earth is about 4600 million years. If half-life of 40K is 1.25*109yrs, what fraction of original 40K is present at formation of earth exists today?
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If 1.598 of TiO2 produces 1.438 g of Ti(x)O(y), determine the empirical formula of the new oxide? Titanium (IV) oxide (TiO2) is heated in the hydrogen gas to give a new titanium oxide, Ti(x)O(y) and water.
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Discuss how much grams of barium phosphate will precipitate when 0.629g of sodium phosphate, molar mass of 380.2 and0.5279g of barium chloride, molar mass of 601.96 is mixed with the water to a volume of 500mL.
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