Calculate the final temperature
Calculate the final temperature (once the ice has melted) of a mixture made up initially of 75.0 ml liquid water at 29.0 degrees C and 7.0 g ice at 0.0 degrees C.
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What is the MOLAR heat of combustion of benzene, C6H6, if the combustion of 1.00g of BENZENE CAUSES THE TEMPERATURE RISE OF 5.18 deg C in a bomb calorimter that has a heat capacity of 8.07 kj/deg C? (molar mass c6h6 = 78.1)
calculate the pH OF 100.0 mL of a bufer that is 0.050 M NH4Cl and 0.110 M NH3 before and after the addition of 1.00 mL of 5.75 M HNO3. before=9.59 after=
It gives a negative test with Br2/CHCl3, but decolorizes KMnO4. (Both results are correct.) What can you infer about your unknown?
Using the diffence in electronegativity how can you tell metallic compounds. Is there a range in EN to indicate a metallic compound?
What approaches do we use to treat the inter electron repulsion part of the Hamiltonian for multi-electron atoms including helium and beyond.
Diazomethane has the following composition by mass: 28.57% C, 4.80% H, and 66.64% N. The molar mass of diazomethane is 42.04 g/mol. Find the molecular formula of diazomethane and draw its Lewis structure.
Calculate the volume (in mL) of a 1.22 M Na2S solution needed to react with 2.75 g of AlBr3 (molar mass = 266.7 g/mol) in the following reaction:
Part A What is the reaction that corresponds to the first ionization energy of rubidium, Rb ? Part B What is the reaction that corresponds to the electron affinity of iodine, I
0.25 mols of an unknown acid is dissolved in enough water to make 1 Liter of solution. The pH of the solution is 2.19. Determine the ka of the acid from this data.
Silver chloride, AgCl, is a sparingly soluble solid. Answer the following questions about a saturated solution prepared by placing solid silver chloride in a 3.49 10-5 M NaCl(aq) solution
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