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The subsequent reaction is carried out in a 2.5 L reaction vessel. 2HgO 2Hg + O2 At the beginning of the reaction, 14.7 mol of HgO are present. After 12 min, 11.1 mol of HgO remain. Explain what is the rate of the reaction in M/min?
A. 0.49 M/min B. 0.37 M/min C. 0.12 M/min D. 0.30 M/min
a gas company charges 1.30 for 15.0 cubic feet of natural gas. a convert this rate to dollars per liter of gas. b if it
A rectangular block of plastic, measuring 1.34 cm by 2.27 cm by 1.39 cm, floats in the middle of the Pacific Ocean. The volume of sea water displaced by the plastic block is 3.35 cm3. Assuming the density of the sea water is 1.025 g/mL, what is th..
A particular smoke detector contains 2.85 uCI of 241Am , with a half-life of 458 . The isotope is encased in a thin aluminum container. Calculate the mass of 241Am in grams in the detector. Fears of radiation exposure from normal use of such detec..
Estimate the ratios of the basic and acidic forms of the histidine side chain
High-purity benzoic acid (C6H5COOH; delta H rxn for combustion= -3227 KJ/mol) is used as a standard for calibrating bomb calorimeters. A 1.221-g sample burns in a calorimeter
on a cold dry morning after a frost the temperature was -5c and the partial pressure of water in the atmosphere fell to
Thallium and indium form +1 and +3 oxidation states when in compounds. Predict the fomulas of the possible compounds between thallium and oxygen and between indium and chlorine. Name the compounds
A certain weak base has a Kb of 7.80 × 10-7. What concentration of this base will produce a pH of 10.16
Determine how do you find out the new freezing point of a solution if given the formula is Delta T = m x kf x i but how do you find it how does it work?
sodium carbonate is a reagent that may be used to standardize acids and bases in the same way that you have used khp in
ammonia will react with oxygen in the presence of a copper catalyst to form nitrogen and water. from 164.5degc to
A weather balloon has a volume of 450 L when filled with helium at 45oC to a pressure 0.80 atm. What is the new volume of the balloon in an atmosphere where the pressure
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