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Hawaiian macadamia nuts provide about 190 Cal of energy usable from the digestion of these nuts per 1.0 oz serving. If the usable energy in an 8.5 oz can were used to light a 100-watt (W) light bulb (1 W = 1 J⋅s), how many hours would the light bulb run from one can of these snacks?
what is the oxidizing and reducing agent 3C2H5OH(aq) +2Cr2O7^2-(aq)+16H^+(aq)-->3CH3CO2H(aq)+4Cr^3+(aq)+11H2)(l)
An acid-base neutralization reaction is exothermic. For the measurement of the enthalpy of neutralization, the change in Hn(n is suppose to be a subscript), for the reaction, heat is inevitably lost to the calorimeter (beaker or styrofoam cup).
The Kb of methylamine is 4.4*10^-4. What is the pH of a 0.35 M solution of methylamine? a. 10.19 b. 3.81 c 12.09 d. 1.91 e. 11.56
An electron spin can adopt either of two orientations in a magnetic field, and its energies are ±?BB, where ?B is the Bohr magneton. Deduce an expression for the partition function and mean energy of the electron and sketch the variation of the fu..
An application calls for N2(g) with a density of 1.80g/L at 32 degrees. What must be the pressure (atm) of the N2(g)?
The following reaction takes place in a sealed 40.0-L container at a temp of 120 degrees C 4NH 3(G) + 5 O2 (g) --> 4NO (g) + 6H2O (G)
2 n2g 3 o2g -gt 2 n2o3gat a certain temperature and pressure 4.2 l of n2 reacts with 6.3 l of o2. if all the n2 and o2
By what factor will the kinetic energy change if the speed of the motorcycle is decreased to 33mph? (c) Where does the kinetic energy of the motorcycle go when the rider brakes to a stop?
The dipole moment μ of HBr (a polar covalent molecule) is 0.82 D (debye), and its percent ionic character is 12.1%. Estimate the bond length of the H-Br bond in picometers.
Carryout the following conversions. Report your answer to the correct number of significant figures
do not specify stereochemistry. (The absolute stereochemical configurations of chiral substances cannot be determined from the data.)
what mass of sucrose should be combined with 462 of water to make a solution with an osmotic pressure of 8.30 at 270 ?
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