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Question- In an ionic compound, the size of the ions affects the internuclear distance (the distance between the centers of adjacent ions), which affects lattice energy (a measure of the force need to pull ions apart), which affects the enthalpy of solution. Based on ion sizes, rank these compounds by their expected heats of solution. List in order of most to least endothemic/expthermic: KF, KCl, KBr, KI
I am not able to solve the above problem somebody help me to get the correct answer
How many milliliters of 0.0820 M NaOH are required to titrate each of the following solutions to the equivalence point. (a) 40.0 mL of 0.0950 M HNO3
Environmental engineers utilizes alkalinity as a measure of the capacity of carbonate buffering systems in water samples Alkalinity (mol/L)= [HCO3- ] + 2[CO32- ]+ [OH - ] + [H+]. Determine the alkalinity of a water sample that has a pH of 9.9,26.0..
The d-d transition in [Ti(H2O)6]+3(aq) produces an absorption maximum at 500 nm. What is the magnitude of ? for this complex in kJ/mol? HINT: E = h ? and c = ? ? Enter your answer using 3 significant figures.
The isomerization of methyl isocyanide, CH3NC ? CH3CN, follows first-order kinetics. The half-lives were found to be 161 min at 199°C and 12.5 min at 230°C. Calculate the activation energy for this reaction.
if 19.65mL of .145M nitric acid is required ti neutralize 50.0mL of barium hydroxide what is the molar concentration of the base? 2HNO3+Ba(OH)2-->Ba(NO3)2+2H2O
how many grams of gold are required to provide a gold coating 0.40 mm thick on a cylinder having a diameter of 0.70
Element X has two isotopes- X - 100 and X 104. If the atomic mass of X is 101 amu, Explain what is the relative abundance of each isotope in nature
Depending on temperature, RbCl can exist in either the rock-salt or CsCl structure type. Give the cation and anion coordination number for each structure type.
What is the final concentration of a solution made from 7.4 mL of 0.97 M CuSO4 and 14.4 mL of water?
rubidium has two naturally occurring isotopes with mass 84.9118 and a natural abundance of 72.17 and with mass 86.9092
A metal sample Having a temperature of 100C and a mass of 45.2 g was placed in 50 g of water with a temperature of 26C. At equilibrium, the final temperature was 32.7 C. How much Heat flowed into the water. what is the heat capacity of the metal
If the emitted green light corresponds to an electron dropping from that excited state back down to the ground state, what is the energy spacing (in aJ) between the highest occupied and lowest unoccupied orbitals. The element used is Thallium.
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