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in 2 solutions of equal volume and mass, but with solutes of different identities, we learned that the solution that has the solute with a lower molecular weight will have a higher bioling point because there will be more moles in the solution. How does boiling point relate to freezing in this scenario? would the same one with the higher bioling point also have a lower freezing point? why?
A 10.0 ml sample of aqueous HCl requires 18.66 ml of 0.206M NaOH to reach the endpoint . What is the molar concentration of HCl ? The chemical equation of the reaction is
What will be the velocity of the escaping electrons under these conditions? What is the de Broglie wavelength of the escaping electrons?
what is the enthalpy of the reaction 2X(aq)+Y(l) ? X2Y(aq) given that the solution has the same heat capacity as water?
Determine how much heat is released at constant pressure if 471.0 g of NO2 is produced,?
For the 3 wood preservatives noted, would acidic vs. alkaline soil or water conditions cause more (or less) leaching or dissolution of these compounds. How do these compounds actually leach out of wood into the environment?
At equilibrium, the pressures of NH3 and HCl are both equal to 0.00552 atm, and the mass of NH4Cl (s) is 35.4 g. Calculate the equilibrium pressure of NH3 after 11.3 g of NH4Cl (s) is added to the container?
A copper refinery produces a copper ingot weighing 180lb . If the copper is drawn into wire whose diameter is 8.10 mm , how many feet of copper can be obtained from the ingot? The density of copper is 8.94g/cm3 .
Calculate the heat of formation of propane given the heat of formation of H2O (liquid) is -285.3 kJ/mol and the heat of formation of CO2 is -393.5 kJ/mol.
The reaction of 2.5g of Al with 2.5g oxygen (actually) produces 3.5g of Al oxide. Calculate the % yield of aluminium oxide.
What main type of intermolecular attraction would you expect for cl2c0?
An excess sample of solid Ag2SO3 is added to 100 mL of water. After equilibrium is achieved between the solid and its aqueous ions the silver ion concentration is found to be 2.486e-05 Use this information to find Ksp for Ag2SO3
Write the structure for the organic reagents and products, name the products and indicate stereochemistry when appropriate
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