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Explain a chloride solution prepared by dissolving 0.2789 g of an unknown sample in 250.00mL as well as taking a 10-mL aliquot of the resulting solution, needs 11.21mL of the same silver nitrate solution to reach the end point
the shark tank at an aquarium houses 5 sharks that deplete theaquarium water of a total of 50.00 grams of oxygen per
question when heated calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas via the reactioncaco3 s
What region of the electromagentic spectrum does this belong to, the frequency of this energy and the energy in J/photon and kJ/mole?
a piece of metal with a mass of147g is placed in a 50ml graduated cylinder. the water level rises from 20ml to 41ml. what density of the metal?
For a second-order rxn: 2A ? B Given: [Ao] = 0.650 M and at 45 seconds [A] = 0.1.15 M. What would be the rxn rate when [A] = 0.297 M
What are the various uses of radioactivity in healthcare. What are the future trends in healthcare with respect to the use of radioactivity.
A portable CD player that draws 175 milliamperes of current is powered by Ni-Cd rechargable batteries. Compute the mass of NiO2 consumed when a disk is played for 115 minutes.
According to the valence bond theory, which of the following molecules involves sp2 hybridization of orbitals on the central atom?
Urea ((NH2)2CO) can be formed from ammonia and carbon dioxide as shown in the following reaction. ?H° value for this synthesis is -134.0 kJ, and ?S° is -424.0 J/K. Calculate the ?G°f for urea. 2NH3(g) + CO2(g) ? (NH2)2CO(s) + H2O(l)
Calculate the molar solubility of Pb(IO3)2 in water by systematic method. {ksp for Pb(IO3)2 = 2.5 x 10^-13}
Sodium carbonate (Na2CO3) is used to neutralize the sulfuric acid spill. How many kilograms of sodium carbonate must be added to neutralize 2.01×10^3kg of sulfuric acid solution
the balloon reaches an altitude of 100m, where the pressure was 658 mmHg and the temperature was -8c. what was the volume in liters of the ballon at these conditions?
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