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If the extinction coefficient of cobalt (II) ion is 5.0, what would the absorption of the solutioni in 2-a be in a 1.00cm cell
A gas occupying 28 mL at standard conditions is heated to 13?C while the pressure is reduced to 0.84119 atm. What is the new volume occupied by the gas.
The number of different constitutional isomers that can be drawn for C2H4Br2 is equal to
consider the gaseous reaction at 347 celsius N2+3H2-->2NH3 if 2.00 mole of N2 and 3.00 mole of H2 react, which of the two reactants is the limiting reagent.
A nitric acid solution containing 71.0% HN)3 (by mass) has a density of 1.42 g/mL. How many moles of HNO3 are present in 1.00L of this solution?
the simplest cycloalkyne has how many carbons? What is the Isoelectric point for aspartic acid. (Amino Acid PI)
the enthalpy of formation of ethanol, C2H5OH, is -277.0 kJ/mol at 298.15k. calculate the enthalpy of combustion of one mole of ethanol, assuming that the products are CO2 (g) and H2O.
What is the lewis dot structure of Cl2O add formal charges to the atoms remember that the formal charges will add up to the ion charge
Suppose 10.0 g of CH4 is used in a reaction that can theoretically produce 95.8 g of CCl4. What is the percent yield of CCl4 if the reaction produces only 80.0 g of CCl4.
What is the pH of the solution formed by mixing 45.0 mL of 0.183 M potassium hydroxide and 65.0 mL of 0.145 M hydrochloric acid?
A cylinder with a piston contains 897 ml of dry oxygen at a pressure of 582 mm Hg and a temperature of 327 K. If the temperature is reduced to 286 K and the pressure increased to 628 mm Hg what is the new volume ?
The concentrated sulfuric acid is 98.0 percent h2so4 by mass. the density of the solution is 1.83 g/ml. the molar mass of h2so4 is 98.08 g/ml.What is the mass of h2so4 in 100.0g of concentrated sulfuric acid solution?
What is the molar mass of a compound if one mole of the compound contains two moles of oxygen atoms, 6.022 × 1024 hydrogen atoms, and 60.05 grams of carbon?
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