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A gas occupying a volume of 248 mL at a pressure of 0.970 atm is allowed to expand at constant temperature until its pressure reaches 0.541 atm. What is its final volume?
A 52.0-g sample of an alloy at 93.0°C is placed into 379 g of water at 22.0°C in an insulated coffee cup. Assume that no heat is absorbed by the cup.
A cumbustion analysis was carried out on 1.621g of newly synthesize compound which was known to contain only carbon,hydrogen and oxygen.
Compute the amount of heat evolved in the oxidation of 32.0 grams of Fe at the temperature 25 oC and pressure 1 atm pressure ( ΔHfo(Fe 2 O 3 ,s) = -824kJ/mol)
Glycerol HOCH2CH(OH)CH2OH is a nonvolatile, water-soluble material. its density is 1.25 g/mL. Predict the vapor pressure of a solution of 2.40 x 10^2 mL of glycerol, in 395 mL of water, at the normal boiling point of water.
find out that how many mL of this suspension must be given to an infant with 21lb weight if the recommended dose =10 mg/kg body weight?
What is the mole fraction of HO2CCH2CHOHCO2H in this solution suppose you dissolve 2.56 grams of malic acid HO2CCH2CHOHCO2H in 50.0 grams of H 2 O.?
Calculate concentration of NaClO solution from that equation and calculate How many grams of this nuclide in a sample of 4.00 g will remain after 112 years?
Determine the limiting, excess reagent & percent yield of the reaction - How much excess reagent is left after the reaction reaches completion?
Calculate the molar mass of a gas that has a density of 0.232 g/L at 156 oC and 222 torr. Use R = 0.0821 L-atm/mol-K for the value of the gas constant.
Calculate the major product in the Williamson ether synthesis between 1-bromopentane and sodium 1-phenylethoxide. correct stereochemistry of the product must be shown in its with four bonds - with H - at the chirality center.
What is the Volume of 1.05 mol of Benzene (C6H6) at 20.7 degrees C. The density of Benzene is 0.879 g/mL.
Solving this question helps the student to understand how to find the limiting reactant and how much product is produced and What mass of product may be produced?
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