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If 24.3 grams of lithium react with excess water, how many liters of hydrogen gas can be produced at 524 Kelvin and 1.23 atmospheres?
2 Li(s) + 2 H2O(l) → 2 LiOH(aq) + H2(g)
Some AgCl(s) has been placed in a beaker of water. After some time, the solubility of Ag+ and Cl- was measured to be 2.5 x 10-5 M. Determine whether the system has reached equilibrium.
State three acids, bases, and salts used in therapeutic processes. Describe how one of each is used in therapeutic processes.
K + KNO3 --> K2O + N2 Determine the number of atoms for each element in the reactants. Determine the number of atoms for each element in the products.
Ethylene glycol, HOCH2CH2OH, is effective as an antifreeze, but it also raises the boiling temperature of automobile coolant, which helps prevent loss of coolant when the weather is hot. a. What is the freezing point of a 50.0% solution of ethylen..
Calculate the molality of each of the following aqueous solutions. (a) 2.00 M NaCl solution (density of solution= 1.08 g/mL). (b) 48.1 percent by mass of KBr solution.
1. it is observed that a solution b of 2.57 g with molar mass 132.6 gmol andnbsp 34.28 g of a froze at 53.1 degree
what is the depth below the surface at which the concentration is 1016 atoms/cm3 if the surface concentration is maintained at 1018 atoms/cm3? Use D = 2 x 10-12 cm2/s for aluminum diffusing in silicon at 1100?C.
The regular free energy of formation of ammonia is -16.5 Kj/mol. Explain what is the value of K for the reaction below at 575.0 K. N2(g) + 3 H2(g) --- 2 NH3(g)
In a 0.400 mol/kg aqueous solution of sucrose, the molarity of sucrose is 0.282 mol/dm3 and the density of water is 0.998 g/cm3 at 20oC and 1 atm. Estimate the osmotic pressure of this solution.
What are the similarities and differences between fission and fusion?
the percentage yield of nh3 from the following reaction is 85? what actual yield is expected from the reaction of
The initial rate for an enzyme-catalyzed reaction has been determined at a number of substrate concentrations. Data are as follows:
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