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if the the atmospheric pressure is 685 mm Hg, what would the partial pressure of oxygen and of nitrogen be?
130 mL of an HCl solution with pH of 3.90 is added to 200 mL of an HNO3 solution. The resulting solution is 1.40 mL. What was the pH of the original HNO3 solution?
how many grams of acetylene are produced by adding water to 5g of CaC2?
If 37.4 grams of water decomposes at 297 Kelvin and 1.30 atmospheres, how many liters of oxygen gas can be produced? 2 H2O (l) yields 2 H2 (g) + O2 (g)
Determine the value of the solubility-product constant if solubility of T3U2 =4.24× 10-20 mol/L.?
calculate the theroretical yield of C2H5Cl when 123 g of C2H6 reacts with 220 g of Cl2, assuming that C2H6 and Cl2 react only to form C2H5Cl and HCl
A 23.1 g sample of pure iron at 95°C is dropped into 78 g of water at 17°C. What is the final temperature of the water-iron mixture?
what will be the equilibrium concentration of CO.
What mass of NaOH is needed to precipitate the Cd^{2+} ions from 38.0 mL of 0.480 M Cd(NO_3)_2 solution
If 29.1 mL of 0.4 M NaOH is used to reach the endpoint when titrating 20.1 mL of acetic acid, what is the concentration of the acetic acid in moles/L
M.r eric castilo purchased alot for PH 1300000 and sold them 2 years later for PH1900000. At what rate did his money earn?
What is the initial sulfur dioxide concentration (in mol/L or M)?
Calculate the solubility of Ca(OH)2 in a 0.469M CaCl2 solution at 31°C, given that the Ksp of Ca(OH)2 is 4.96 x 10-6 at that temperature. Give your answer in milli Molar units
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