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The standard enthalpy of formation of the metallocene bis(benzene)chromium was measured in a calorimeter. It was found for the reaction Cr(C6H6)2(s) → Cr(s) + 2 C6H6(g) that . Find the corresponding reaction enthalpy and estimate the standard enthalpy of formation of the compound at 583 K. The constant-pressure molar heat capacity of benzene is 136.1 J K-1 mol-1 in its liquid range and 81.67 J K-1 mol-1 as a gas.
Calculate the number of moles of ions present in 58.5 g of a solution that is 8.68% Fe2(SO4)3 by mass. a) There are 0.0635 moles of ions in this solution. b) There are 0.0127 moles of ions in this solution.
Alkyl halides add to alkenes in the presence of AlCL3; yields are the highest when tertiary halides are used . predict the outcome of the reaction of t-pentyl chloride
Why do the group 5A elements have relatively small electron affinities compared to the neighboring nonmetals in the corresponding rows
When 37.2 L ammonia and 42.0 L oxygen gas at STP burn, nitrogen monoxide and water are produced. After the products return to STP, how many grams of nitrogen monoxide are present
draw structures for p-bromoaniline, 3,5 dimethylbenzoic acid, p-chlorobenzaldehyde and 1-phenyl-3-methylpentane
Weigh 3.503g of NaC2H3O2*3H2O and add it into a 150mL beaker. Pour in 8.8 mL of 3M acetic acid. Pour in 55.6 mL of distilled water and add it to the mixture and stir the solution.
in a coffee cup calorimeter 50.0 ml of 1.0 m naoh and 50 ml of 1.0 m hcl are mixed. both solutions are originally at
what was the original total concentration of cesium and the corresponding radioactivity in Ci/L?
An "A" group metal (M) reacts with chlorine and oxygen to form ionic compounds with the formulas MCl4 and MO2. Propose a possible identity for the metal M. Explain your reasoning.
THe first equivalence point was reached after the addition of 15.25 mL of base. THe second equivalence point was reached after the addition of 30.98 mL. Find two values for the molarity of H3Y in the original sample.
Give a step by step mechanism for the reaction of the following: a. salicylic acid with acetic anhydride/ phosphoric acid b. salicylic acid with methanol/hydrochloric acid
What is the empirical formula? What is the molecular formula? How many grams of oxygen gas were used to oxidize the original 2.035 grams of compound?
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