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KBr has a lattice energy -671 kJ/mol.
Consider a hypothetical salt XY.X^(2+) has the same radius of K+. Y^(2-) has the same radius as Br- Estimate the lattice energy of XY in kJ/mol.
At a certain temperature and pressure 2.8 L of N2 reacts with 4.2 L of O2. If all the N2 and O2 are consumed, what volume of N2O3, at the same temperature and pressure.
Draw a structural formula of an alkene or alkenes (if more than one) that undergo acid-catalyzed hydration and without rearrangement give 3-hexanol as the MAJOR product.
how many grams of asprin were lost in the washing process you used to purify your product assuming you used 50ml if
1. a 0.421g sample of aspirin prepared in the laboratoryis dissolved in 95 ethanol diluted with water and titrated
what is the enthapy change needed to heat 1 kg of water at 0.4 MPa and 4°C to steam at 150°C and 0.4 MPa? b/ Does a state change from saturated vapor at 230°C to the state 100°C and 0.05 MPa represent an enthalpy increase or decrease?
If 145 grams of potassium nitrate were added to water to make 1,500 mL of solution, what would be the molarity of the resulting solution?
What do the structures of a two-carbon acid, a two-carbon alcohol, a three-carbon aldehyde, a four-carbon ketone, and a two-carbon amide look like
When acetylene (ethyne) is passed through a solution of copper(I) chloride a red precipitate of copper acetylide, CuC2
An aqueous solution contains 51.4g of C3H7OH in 127.0g of solution. Explain what is the mole fraction of C3H7OH
consider a single d-electron in a homogeneous magnetic field.calculate the angles which the respective angular momentum
Know the reaction catalyzed by catalase. 1.What is the substrate of this enzyme? 2.What are the products? 3.Is catalase found in the cells of the human body?
dichloromethane and carbon tetrachloride... what are thepartial pressures of these substances in the vapor above a
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