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In Mexico, avocados are 125 pesos per kilogram. What is the cost in cents of an avocado that weighs 0.45 lb if the exchange rate is 11 pesos to the dollar?
Sorbose, C6H12O6, is used in making vitamin C. A sorbose sample containing 96.0 g of carbon atoms also contains ____ g of hydrogen atoms.
In the titration of a solution of the extremely weak acid, HCN (Ka = 6.2 x 10-10), by a solution of sodium hydroxide of equal concentration,
Treatment of the bicyclic chloride A with lithium in tetrahydrofuran (THF) gave the monocyclic product B, C9H9Li. In deuterated THF, B exhibited a single proton NMR signal at 6.72 ppm
Calculate the equilibrium concentrations of NH3 and H2S if a sample of solid NH4HS is placed in a closed vessel and decomposes until equilibrium is reached
As the electron in a hydrogen atom jumps from the = 3 orbit to the = 7 orbit, does it absorb energy or emit energy?
What is the pH of a solution prepared by adding 66.0 ml of 0.100 M HCl to 43.0 ml of 0.200 M NaOH
How many grams of sodium bromide must be added to 309 grams of water in order to prepare a 0.108 molal sodium bromide solution?
When a substance melts, bonds between the particles within the solid are broken, allowing the particles to become mobile and fluid. Ionic bonds and covalent bonds between atoms are comparable in strength
What characteristic H NMR absorptions would be expected in the aliphatic region for 9-hydroxyfluorene
If 36.6 grams of hydrogen sulfide gas (H2S; MM = 34.08 g/mol) react with 35.6 grams of oxygen gas (O2, MM = 32.00 g/mol), what is the mass of sulfur dioxide (SO2, MM = 64.06 g/mol) gas produced
he reduction table in your notes, calculate the standard cell potential for the following reactions. 2 Al3+(aq) + 3 Pb(s) 2 Al(s) + 3 Pb2+(aq)
Can someone please explain to me how to identify the ion when you are given its last electron with the following quantum numbers?
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