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Organic vs. Silicon-Based Solar CellsCompare and contrast organic and present day silicon-based (inorganic) solar cells.
Describe the physics behind the operation of these solar photovoltaic devices and then discuss how their efficiencies are determined.
What advantages and disadvantages exist for both organic and inorganic solar cells?
Describe the main barriers or technical difficulties associated with each.
How many liters of O2 are needed to react completely with 45.0L of H2S at STP? 2H2S(g) + 3O2(g) -> 2SO2(g) +2H20(g)
Determine what is the exact volume of the 250-mL Erlenmeyer flask express your answer (in mL)?
A 17.0-g sample of ice at -19.0°C is mixed with 101.0 g of water at 87.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
You have a 48.9 g sample of water at the temperature of -60.0 degrees celcius. How much energy is required to: a) heat the ice to 0 degrees celcius
A 14.0 g sample of X combines with a 26.2 g sample of Y to form the compound XY2. What is the mass of the reactants.
Meaning, use and calculation of empirical formulas, In this introduction are given the explanation of how to find out an empirical formula if one has found out the chemical elements of an unknown substance and measured their ratio of masses
A gaseous mixture of O2 and Kr has a density of 1.192 g/L at 305 torr and 300. K. What is the mole percent O2 in the mixture
determine volume it would have if it reaches an altitude where the temperature = -33 0C , pressure = 0.65 atm?
What is the temperature change If 84 joules of heat are added to a pure gold coin with a mass of fifteen grams? It is given that the Specific heat capacity of Au= 0.128
You collected a water sample from your shower containing 3.2mM Ca2+ and 1.1 mM Mg2+ whats the hardness of water in terms of CaCO3/L.
Using a sample of a compound containing only oxygen and chlorine reacts with an excess of H2 gas to give 0.206 g water and 0.278 g HCl
A stock solution is prepared by adding 25 mL of 2.2 M AlCl3 to enough water to make 75 mL. What is the Cl- concentration of 25 mL of the stock solution.
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