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Arrange the subsequent ionic compounds in order of reducing amount of energy released in lattice formation: NaF, CaO, InN, and RbBr.
Write the molecular formula for a compound with the possible elements C, H, N & O that exhibits a molecular ion at M+=85.0894. Please show all steps, I have no idea how to do this problem, and I want to understand it for the exam.
What will be the velocity of the escaping electrons under these conditions? What is the de Broglie wavelength of the escaping electrons?
The container has a pinhole the area of which is one square millimeter. How long will it take for the pressure of the helium to equal the pressure of the argon in the container. When the pressure are equal what will the total pressure in the conta..
consider the titration of 39.0 mL of 0.240 M HF with 0.215M NaOH. Calculate the ph at the following points. calculate the ph after the addition of 9.75 mL of base.
Apotential of 0.33V is measured against a Ag/AgCl electrode. What would it be when measured against: NHE and SCE
What is the molar concentration of a solution containing 45.6 grams of NaCl added to 2.00 liters of water at 20 degrees Celsius? Density of water at 20 degrees Celsius = 0.998 g/mL
A stock solution of perchloric acid is 70.5% by mass HClO4 and 29.5% by mass water. The density of the solution is 1.67 g·mL-1 at 20 C. Calculate the molarity of the solution.
Which of the following equations represents the proper net ionic equation for the complete neutralization reaction between the weak acid HClO2 (aq) and the strong base KOH (aq)?
Determine the magnesium content (in ppm) of a 100.00 mL sample of drinking water if the following data were obtained. Titrant is 0.0551 M EDTA, 12.41 mL were used when an aliquot of the sample was at pH 13.0, 18.63 mL were used for an aliquot at p..
Decide whether or not each of the following metals dissolves in 1 {rm M} {rm HCl}. For these metals that do dissolve, write a balanced redox reaction showing what happens when the metal dissolves.
Suppose that 25 g of each of the following substances is initially at 28.0degrees C. What is the final temperature of each of the following substances upon absorbing 2.35 kJ of heat.
Given 479.5 g of hot tea at 83.0 *C , what mass of ice at 0 *C must be added to obtain iced tea at 10.5*C? The specific heat of the tea is 4.18 J/g*C, and change in H(fusion) for ice is +6.01 kJ/mol.
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