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For the following reaction, Kp = 1.16 at 800.°C. CaCO3(s) CaO (s) + CO2 (g) If a 25.0-g sample of CaCO3 is put into a 10.2-L container and heated to 800.°C, what percent of the CaCO3 will react to reach equilibrium? A) 23.7% B) 53.8% C) 13.4% D) 100.% E) 47.4%
If you wanted to prepare a 1.45 L buffer with a total phosphate concentration of 0.0500 M, how many grams of NaH2PO4 and Na2HPO4 would you mix together? How many grams of conjugate acid do you need? How many grams of conjugate base do you need?
A flask contains 0.653g of acid and a few drops of phenolphthalene indicator dissolved in water. the buret contains 0.170M NaOH.
A 500.0 mL sample of 0.200 M sodium phosphate is mixed with 400.0 mL of 0.237 M barium chloride. what is the mass of the solid produced
A major component of gasoline is octane (C8H18), when octane is burned in air it chemically reacts with oxygen gas (O2) to produce carbon dioxide and water. What mass of oxygen gas is consumed by the reaction of 6.0g of octane
Anton Von L. a 17th century pioneer in the use of the microscope, described the microrganisms he saw as "animalcules" whose length was "25 thousandths of an inch."
A student dissolves 1.01 grams of nicotinic acid, C_6_H_5_NO_2_, in water to give 60 mL of solution having a pH of 2.67. What is the approximate value of Ka for the acid based on this observation?
How many molecular orbitals will be formed by combination of the 3s and 3p atomic orbitals in 1.0 mol of Mg atoms. At 0 K, what fraction of these orbitals will be occupied by electron pairs (all orbitals filled up to the Fermi level)
7.04 g of CuNO3 is dissolved in water to make a 0.300 M solution. What is the volume of the solution.
Car air bags operate by the explosive reaction of NaN3: 2NaN ( ) 2Na( ) 3N ( ) 3 2 s s + g
If the original activity of a radioactive substance was 2.00 Ci and later the activity was measured to be 9.25x10^9 Bq, how many half-lives have passed
Starting with needed alkanes, alkenes and inorganic regrets, devise syntheses for the following compounds. Yout method should produce each compound in good yield and free of isomers.
Terephthalic acid is an organic compound used in the formation of polyesters. It contains 57.8 percent C, 3.64 percent H, and 38.5 percent O. The molar mass is known to be approximately 166 g/mol. What is the molecular formula of terephthalic acid..
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