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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.
a venturi meter measures the flow of water at 65 degrees f in a 34 inch inside diameter pipe. the meter has an 18 inch
For a particle in a one-dimentional box, calculate the probability that the particle will be found in the middle third of the box: L/3 less than or equal to x less than or equal to 2L/3.
The second-order reaction, 2 Mn(CO)5 Mn2(CO)10 has a rate constant equal to 3.0 x 109 M-1s-1 at 25°C. If the initial concentration of Mn(CO)5 is 1.0 x 10-5 M.
the reaction between calcium metal and chlorine gas is described by the following thermochemical equation cas cl2g
a standard of pb2 for an analysis using atomic absorption isprepared by first dissolving 1.0390 g dried pbno32 in
What is the mole fraction of Kr if the partial pressure of Xe and Ar are 1.60 atm and 2.8 atm, respectively?
Equal volumes of 0.316 M aqueous solutions of nitrous acid and sodium acetate are mixed. What is the nitrite ion concentration once equilibrium is established
the law of corresponding states implies that all real gases act similarly under the same reduced conditions. thus a
Arrange these aqueous solutions, each 10% by mass in solute, in order of increasing freezing point and boiling point. Explain your reasoning.
Calculate the number of moles of Cl atoms in 1.20×1024 formula~units of magnesium chloride, MgCl_2
How many milliliters of 0.125 M HCl are needed to completely neutralize 48.0mL of 0.102 M Ba(OH)2 solution? How many milliliters of 0.122 M H2SO4 are needed to neutralize 0.210g of NaOH?
What mass of is required to form 1.2 of at a temperature of 295 and a pressure of 0.998. With the equation:2H2O(l)----->2H (g)+O (g)
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