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1. Calculate the yield of CO2 resulting from a complete combustion reaction of 275 grams heptane, C7H16, in the presence of excess oxygen.
2. Calculate the yield of CO2 resulting from a complete combustion reaction involving 275 grams C7H16 and 925 grams of moleculate oxygen.
determine the mass of solid sodium formate of mw 68.0 must be combined to 150 ml of 0.66 moll hcooh to make a buffer
Use Le Chatelier's principle to explain why the buffer prevents large changes from occuring in PH when
what would be the result if we heated a mixture of dichloromethane bp 39-40 degrees celsius and napthalene c10h8 mp
A 4.08g sample of a compound contains 3.02g of oxygen. What is the empirical formula
Based on your observations, what might have happened if you had not followed these instructions? Might this also have affected your percent yield? Explain.
Draw and label the Crystal Field splitting diagram for the 3d atomic orbitals in an octahedral field
how many moles of AlCl3 is that b.) How many moles of NaOH is that c.) Which is your limiting reagent d.) How much (in grams) solid Al(OH)3 is formed e.) What is the concentration of NaCl in the Erlenmeyer flask (total volume = 50.00 mL)
Calcium has a work function of 4.64x10^-19 J. Which of the following wavelenghts will eject electrons from calcium
Electrons are ejected from sodium metal by any light that has a wavelength shorter than 544 nm. What is the kinetic energy of an electron
The chemist used a thermometer that was miscalibrated by 2(degrees)c over the entire thermometer scale. will this factory error cause the reported energy of neutralization to be higher, lower, or unaffected? explain.
Find out the Kb of ammonia if the pH of a buffer formed by mixing 50.0 mL of 1.00 M NH 3 and 50.0 mL of 1.00 M ammonium nitrate?
calculate acidic and basic buffer capacity. How much of strong acid should be added to shift buffer pH one unit down, and how much of the strong base is needed to bring buffer pH one unit up?
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