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You have 75.0 mL of a 2.50 M solution of Na2CrO4(aq). You also have 125 mL of a 1.52 M solution of AgNO3(aq). Calculate the concentration of CrO4 2- after the two solutions are mixed together.
CH4(g) + 3 Cl2(g) CHCl3(g) + 3 HCl(g) How many grams of CH4 is needed to produce 43.0 g CHCl3?
A solution is prepared by dissolving 12.9 g ammonium sulfate in enough water to make 100.0 mL of stock solution. A 15.00 mL sample of this stock solution is added to 53.00 mL of water.
at 1 atm, how much energy (kJ) is required to heat 81.0g of H2O(s) at -22.0 degrees celcius to H2O(g) at 119.0 degrees celcius?
Sketch Flow diagram and explain the extraction process - What is the purpose of extracting the organic layer with water in the first extraction step?
At 25 0C the density of a 50 % (by mass) ethanol/water solution is 0.914 g/cc. Given that the partial molar volume of water in the solution is 17.4 cc/mol.
how many grams of benzene are needed in 46.3 grams NaBr (103 g/ mol)? the freezing point of solution to 3.94 degree C?
Consider the following balanced equation: 2 N2O5 → 4 NO2 + O2. If a 5.00 g sample of N2O5 undergoes this reaction, how many grams of O2 will also be formed?
If 145.0 mL of 0.350 M lithium hydroxide is required to titrate 35.0 mL of an unknown monoprotic acid, what is the molar concentration of the unknown acid.
A particular diatomic molecule which contains H exhibits a 16.95 cm^-1 spacing between its rotational lines and bond length of 141.5 picometers. Determine the mass (in amu) of the unknown atom in the molecule.
You are given trhat 0.01 m aqueous solutions of each of the given solution as, C6H12O6, K3PO4, CaCl2 , NaI you jutst need to place the given solutions in order of increasing change in the freezing point of the solution.
Consider the titration of 100.0 mL of 0.100 M HNO3 by 0.200 M NaOH.Calculate the pH after 34.5 mL of NaOH has been added.At what volume (in mL) of NaOH added does the pH of the resulting solution equal 7.00.
A rigid flask is initially filled with 4.00 atm of NO2(g) and no N2O4(g) at 100 C. After equilibrium is achieved, the pressure of NO2 is 1.56 atm.
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