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A unit cell of sodium chloride (face-centered cubic) was chosen so that the face-centered cube was formed from sodium ions. A certain number of sodium ion lattice points and a certain number of chloride ion lattice points are required. How many chloride ion lattice points are in the unit cell as described above?
Gasoline currently powers the majority of automobiles in the U.S. but electric cars have been touted as a way to reduce our dependence on gasoline as well as improve our air quality by reducing production of byproducts associated with gasoline com..
What is the maximum concentration of Mg2+ ion that can remain dissolved in a solution that contains 0.7719 M NH3 and 0.3031 M NH4Cl?
Arrange the molecules in order of decreasing boiling point Molecules are methane, dimethyl ether
The density of the solution is 0.993 g/mL. What is the molarity and molality of acetone in this solution?
Lithium iodide has a lattice energy of -7.3 times 10^2kJmol and a heat of hydration of -793kj/mol. Find the heat of solution for lithium iodide.
Determine why would the P have been higher or lower if the H 2 O had been at pH 5?
potassiumm chlorate (KClO3) decomposes to form potassium chloride and oxygen gas. if 5.4 moles of potassium chlorate decompose, how many moles of oxygen could be produce.
If 153 mL of wet H2 is collected over water at 24°C and a barometric pressure of 729 torr, how many grams of Zn have been consumed?(The vapor pressure of water is 22.38 torr at 24°C.)
report the total heat needed and the heat needed for each individual step in the process.
A canister is filled with 320 g of ice and 100. rm g of liquid water, both at 0 rm{^{circ}C} . The canister is placed in an oven until all the rm H_2O has boiled off and the canister is empty. How much energy in calories was absorbed?
Calculate the mass of urea that should be dissolved in 187 g of water at 35C to produce a solution with vapor pressure of 37.7 mmHg
A student placed 20.0 g of glucose (C6H12O6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100. mL mark on the neck of the flask was reached.
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