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1) Explain how microorganisms can be used to produce electricity (bacterial fuel cells).
2) Explain why you feel pain when you bite down
Determine the molality and molarity of the HCL, if the solution has a density of 1.20 g/ml.
Calculate the value of E°cell for a voltaic cell described in each of the following. Enter your answer with 3 significant digits. Enter scientific notation as 1.23E4
Based on Liquid Chromatography, how can I changed if the capacity value and selectivity value and resolution value is not in the proper range?
How can you account for the difference between the colors of the benzaldehyde and cyclohexanone? Explain using formulas.
Given the following thermochemical equation, calculate the heat (in kJ) involved in decomposing 18.0 g of water to give one mole of (g). 2H2 + O2 ---> 2H2O change in heat is -571.6 Kilojoules a. 286 b. 572 c. 1143 d. -572 e. -286
The decomposition of hydrogen peroxid is second order in H2O2. If 50 grams of 30% hydrogen peroxide is placed in a beaker within a sealed environment, what will be the concentration of hydrogen peroxide
Can someone give me a step by step solution from the Quantatative chemical analysis text from author Daniel c. Harris(the 8th edition) problem CH4-4-E. It about a confidence level.
calculate the molarity of a solution made by adding 12.9 of CaCl_2 to a flask and dissolving the solid to total volume of solution equal
A cook wants to heat 1.35 of water from 32.0 to 100.0 .If he uses the combustion of natural gas (which is exothermic) to heat the water, how much natural gas will he need to burn.
A 25.0-mL sample of 0.35 M HCOOH is titrated with 0.20 M KOH. What is the pH of the solution after 25.0 mL of KOH has been added to the acid? Ka = 1.77 × 10-4
Calculate the solubility product (Ksp) for barium fluoride if the concentration of the barium ion is 3.6 x 10-3 M and of the fluoride ion is 7.2 x 10-3 M.
A gaseous mixture has a volume of 240L and a pressure of 1.35atm at 24*C. The mixture is 67% He and 33% Kr by mass. What is the mass of Kr
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