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Calculate the relative amounts of 1-chloropropane and 2-chloropane obtained the radical chlorination of propane
oxygen makes up 46.7 by mass of the earths crust. how many grams of oxygen are present if a sample of the earths crust
A 5.00 Liter cylinder contains 860 g of Ar gas at 27 degrees celsius. Calculate the pressure of the gas in the cylinder
A certain reaction A ? products is second order in A. If this reaction is 10.% complete after 20. s, how long would it take for the reaction to be 90.% complete
Two hypothetical ionic compounds are discovered with the chemical formulas XCl2 and YCl2, where X and Y represent symbols of the imaginary elements. Chemical analysis of the two compounds reveals that 0.25 mol XCl2 has a mass of 100.0 g and 0.50 m..
Calculate the pH of a buffer solution that is 0.250 M in HCN and 0.170 M in KCN. For HCN, Ka = 4.9 x 10^-10 (pka = 9.31). Use the equilibirum approach to calculate this pH
When ammonia is burned in oxygen, free nitrogen gas and water are produced. What volume of ammonia will react completely with 25.0 L of oxygen? What volume of nitrogen gas is formed?
Consider the general chemical equation. 9 A + 2 B ---> 8 C + 4 D (a) How many moles of C are produced from 9 moles of A. (b) How many liters of gas D are produced from 9 liters of gas A at the same temperature and pressure
How much energy must be removed from a 125 g sample of benzene (molar mass=78.11g/mol) at 425.0 k to liquify the sample and lower them temperature to 335.0 k
Calculate the concentration of C6H5NH3+ in this buffer solution b) Calculate the pH after 4.0 g of NaOH(s) is added to 1.0 L of this solution (neglect volume changes)
Based on the stereochemistry of the addition of bromine to cinnamic acid write the structure of dibromide product(s) that you think will be formed as the result of the reaction of Z-2-pentene with bromine.
A rare gold coin (24 karat, or 100% gold) has a mass of 25.54 g. How many atoms of gold are present in this coin
A sample of steam with a mass of 0.550grams and at a temperature of 100 degrees celcius condenses into an insulated container holding 4.30grams of water at 6.0 celcius
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