Catalytic amount of sodium iodide
In the reaction of 1-chlorobutane with cyanide ion, the reaction rate is increased by the addition of a catalytic amount of sodium iodide. Explain this result.
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What is the emprical formulae of the compound whose composition by mass is 1.32g of carbon dioxide contain 0.36g of carbon
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A 36.0 mg sample of an organic compound (molar mass = 84.0 g/mol) is dissolved in 10.0 mL of water. This aqueous solution is extracted with 5.0 mL of hexane. Separation and analysis of the aqueous phase shows that it now contains 12.0 mg of the or
If 1.4% of the mass of a human body is calcium, how many kilograms of calcium are there in a 205-pound man?
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A chemist dissolves 0.9 g of an unknown monoprotic (one acidic H) acid in water. What is the chemical formula and name of this acid?
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