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Calculate the lattice energy of calcium chloride given that the heat of sublimation of Ca is 121 kj/mol as well as delta H of formation (CaCl2) = -795 kj/mol.
A nucleoside is composed of ribose that is linked to the nitrogen atom of the base. Which carbon on the sugar is linked to the base. and what is the name of the bond
A piece of silver with a mass 415 g has a heat capacity of 98.4 j/degrees celsius. what is the specific heat of silver
What is the pH of a solution prepared by mixing 100 mL of 0.020 M Ca(OH)2 with 50 mL of 0.100 M NaOH? assume that the volumes are additive.
A Cu/Cu^2+ concentration cell has a voltage of .24V at 25 degrees C. The concentration of Cu^2+ in one of the half-cells is 1.5*10^-3 M. What is the concentration of Cu^2+ in the other half-cell
Exactly 100 mL of 0.10 M nitrous acid (HNO2) are titrated with a 0.10 M NaOH solution. Calculate the pH for the following. (a) the point at which 80 mL of the base has been added
consider the following reaction where kp 2.01 at 500 kpcl3g cl2g pcl5gif the three gases are mixed in a rigid
Which components of an acrylamide gel effects qualities of the final product, and which components affect the speed of polymerization?
Assume that the heat capacity of water for the temperature rangere in the heat exchanger is constant at 7.54x10^-2 kJ/mol C) What is the temperature of water leaving the heat exchanger?
A 50% KOH solution (d= 1.52 g/mL) is made by adding 50 grams of KOH and enough water until the weight of the solution is 100 g. Calculate the molarity of the 50% KOH solution.
You have a box of volume 1.00 liter into which you inject 2.65 g of NH3 at 600 K. What will be the final concentrations of NH3, N2, and H2 after equilibrium is established
What is the lead ion concentration in a saturated lead(II)chloride solution made by adding solid PbCl2
What is the concentration of the sodium hydroxide at the lower temperature. Assume the solution is dilute enough to have physical properties of water.
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