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an ideal spring of negligible mass is 120 cm long when nothing is attached to it, when you hang a 3.15 kg object from it, you measure its length to be 13.40. if you wanted to store 10.0 j of potential energy in this spring. what would be its total length? assume that it continues to obey hooke's law
Urea (NH2CONH2) an important nitrogen fertilizer is produced industrially by the reaction given that ?G initial = -13.6KJ, calculate ?G at 298K for the following sets of conditions
Calculate the concentration of H3PO4 if 25.00 mL of the acid is titrated with 38.77 mL of 1.723 M KOH to produce K3PO4 and water.
A sample of tap water consists of water, fluoride ions, calcium ions, and several other dissolved ions. The ions are evenly distributed throughout the water. Which term or terms could be used to describe this sample of tap water
When the concentration of A in the reaction A →B was changed from 1.20 M to 0.60 M, the half-life increased from 2.0 min to 4.0 min at 25°C?
Write balanced, net ionic equations when the following compounds are mixed. Indicated mixtures where no reaction is expected with the notation no rxn.
The small bags of silica gel you often see in a new shoe box are placed there to control humidity. Despite its name, silica gel is a solid. It is a chemically inert, highly porous, amorphous form of SiO2
Using Phenyllithium as well as any necessary organic or inorganic reagents, suggest proficient syntheses of each of the following:
Nitric acid can be synthesized by the high temperature reaction of oxygen and ammonia forming nitric acid and water through the following reaction at 650 degrees C
Explain what are the possible manipulation errors that might contribute to the errors in results of obtaining a larger amount of NaCl than was present in the original sample
if the thermometer is position too high in the distillation adapter how would this affect your boiling point
it is known that 1500 revolution are required for the 6000-ib flywheel to cost to rest from an velocity of 300 rpm.
When adjusted for any changes in and with temperature, the standard free energy change at 2400 is equal to . Calculate the equilibrium constant at 2400.
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