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At 25 degrees Celsius, .87 atm of No2(g) was allowed to decompose. At equilibrium it was found that the partial pressure of no2(g) was .81 atm. Calculate the value of kc at this temperature
what purpose does sodium carbonate serve during the extraction of caffeine from tea leaves?
How would I find the percent yield and theoretical yield if I have 0.76 g of 3-nitrobenzaldehyde to start out with, 0.60mL of acetophenone required for the reaction between p-anisaldehyde and acetophenone
1.013-g sample of ZnSO4•xH2O is dissolved in an aqueous solution of BaCl2. The pure BaSO4 precipitate is filtered out of solution, dried, and its mass is determined to be 0.8223 g. What is the value of x in ZnSO4•xH2O?
Gastric juice is made up of substances secreted from parietal cells, chief cells, and mucous-secreting cells. The cells secrete HCl, proteolytic enzyme zymogens, mucin, and intrinsic factor
Calculate the molarity and standard deviation of MnSO4 stock solution using the molarity
The flow-through fraction in ion exchange chromotography of amino acids in which a cation exchange resin was used is expected to contain mainly
The compound NOCl decomposes to nitric oxide and chlorine according to the following equation: 2 NOCl (g) ? 2 NO (g) + Cl2 (g) Suppose that 0.420 mol NOCl is placed in a 3.00-L flask at a given temperature
A colorless liquid A (C3H6O) was soluble in water and ether, and had a boiling point of 94-96 degrees Celsius. It decolorized a Br2-CH2Cl2 solution and gave a positive ceric nitrate test
Permenant sterility in women occurs at 300.0 rem of exposure. The source radiates with 3540 rem at 500.0 cm.
how many ml of concentrated sulfuric acid would be required to mae 1 L of 0.2N solution
He finds that the total pressure at equilibrium is 40% greater than it was originally. What is Kc for this reaction?
Calculate the concentration of bicarbonate ion, HCO3 -, in a 0.010 M H2CO3 solution that has the step wise dissociation constants Ka1 = 4.3 × 10-7 and Ka2 = 5.6 × 10-11.
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