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What is a lithium-ion battery?
What is a nickel-cadmium battery?
Why do you think Boeing picked the lithium-ion battery? Put yourself in the place of a Boeing engineer, what are the risks vs. benefits of using this type of battery?
Obviously, the Boeing engineer selected the lithium-ion battery based on their risk assessment. In your opinion, do you feel they made the right decision? Explain.
For a helium atom in a 1D box, calculate the value of the quantum number of the energy level for which energy is equal to 3/2 kT at 25C (A) for a box 1 nm long (B) for a box 10-6 m long.
The purity of gold alloys is expressed in karats, which is the mass fraction of gold multiplied by 24. Pure gold is 24 kt, whereas 16 kt gold jewelry typically contains 66.666667% gold, 16.666667% silver and 16.666667% copper (by mass).
What is the approximate pH at the equivalence point of a weak acid-strong base titration if 25 mL of aqueous formic acid requires 29.80 mL of 0. 3567 M NaOH? Ka =1.8 × 10-4 for formic acid.
Explain which element is the central atom, define how many bonds does the central atom form, is it polar or non-polar, define what the direction of negativity is
What is the theoretical yeild of sodium carbonate for the equation: 2NaHCO3(s)--> Na2CO3(aq) + H2O(g) + CO2(g)
Question- A crystal lattice has copper at all the corner positions and nickel at all the face positions in a unit cell. What is the formula of the unit cell
the equilibrium constant kc for the reaction has the valueof 4.00 at 500k. if a mixture of 1.00 mol co and 1.00 mol
Please create 1 synthesis (you get to choose any starting material) but you should demonstrate all of the following reactions and the product: oxymercuration +hydroboration+ addition+ KMnO4 + hydrolysis + LDA.
lidocaine is used as a drug during heart attacks to correct irregular heart rhythms called pvcs. the normal dosage is
Explain about the basics of Periodic Table
Explain what is a quantum number? The number of sublevels within each energy level. That is for energy level n=1, there is only 1 sublevel, but for n=4, there are 4 sublevel. Explain how are sublevels indicated
The following reaction is first order, C2H6---> 2CH3. If the rate constant is equal to 5.5x10^-4s^-1 at 1000K, how long will it take for 0.35 mol of C2H6 in a 1.00 L container to decrease to 0.20 mol in the same container
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