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A portion of a two-dimensional "slab" of NaCl(s) is shown here (see Figure) in which the ions are numbered.
(a) Of the following types of interactions (identified by color), which are attractive and which are repulsive: "purple-purple," "purple-green," "green-green"? Explain.
(b) Consider the "green-green" interactions between ions 1 and 3, ions 1 and 5, and ions 3 and 5.Which one or more of these three will result in the interaction of largest magnitude? Which one or more will result in the interaction of the smallest magnitude?
(c) Consider the "green-green" interactions between ions 1 and 5 and the "green-purple" interactions between ions 1 and 2. Which of these will have the greater magnitude?
(d) Does your answer to part (c) help explain why NaCl is a stable ionic solid?
Consider a reaction of the type aA--->products in which the rate law is found to be rate=k(A)3 If the first half of the reaction is found to be 40 seconds what is the time for the second half life
Write net Brønsted equations that show the acidic or basic nature of the following substances, given the pH.
The B4O5(OH)4^2- ion, present in 5.0 ml of a saturated Na2B4O5(OH)4 solution at a measured temperature, is titrated to the bromocresol green endpoint with 6.51 mL of 0.146 m HCl. How many oles of B4O5(OH)4^2- are present in the sample
Identify the atom whose electron configuration is [Ar]3d74s2. Write the one or two letter symbol for the element. How many unpaired electrons are there in the ground state of this atom
ags2o32 23ag 2s2o3 ags2o32 32ags2o32 ags2o3 s2o3 2ag s2o3 what is unique about the condition of equilibrium in an
The volume of blood in the body of a certain deep-sea diver is about 6.00 L. Blood cells make up about 55% of the blood volume, and the remaining 45% is the aqueous solution called plasma.
Determine thel volume (mL) required to prepare each of the following: a)20.0 mL of a .250 M KNO3 solution from a 6.00 M KNO3 solution. b)25.0 mL of 2.50 M H2SO4 solution using a 12.0 M H2SO4 solution. c).500 L of a 1.50 M NH4Cl solution using a 10..
The bottle is then brought outside and stored at 0.0°C. (a) What mass of liquid water condenses inside the bottle?
Calculate the average net charge on phenylalanine if it is in a solution that has a pH of 8.40 (If the charge is positive, you do not need to enter a \+ \" sign.)
Although the term "melting point" is used to describe a solid/ liquid change, we generally list melting ranges rather than single melting point. For most pure substances,
20.0grams of HI is introduced into an evacuated vessel at 731K and allowed to reach equilibrium. Find the mole fractions of H2, I2, and HI present at equilibrium. Kp = Kc = Kx = 65.0 for the reaction H2(g) + IO2(g)----2 HI(g)
topic global warming is one of the most serious environmental problems today as it is caused primarily by the burning
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