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Assume that in the synthesis of isoamyl acetate a student began with 6.106 grams of acetic acid as well as 3.84 grams of isoamyl alcohol. If the mass of isoamyl acetate obtained were 4.97 explain what the percent yield was?
explain why addin eletcrons to a bonding orbital leads to bonding of an atom, in terms of electron distribution
Iron ore is impure Fe2O3. While Fe2O3 is heated with an excess of carbon, iron metal is produced. As of a sample of ore weighing 812kg, 486kg of pure iron is obtained. Presuming that the % yield is 100%, explain what is the % Fe2O3 by mass in the ..
A 31.0 sample of an unknown H3PO4 solution is tritrated with a 0.120M NaOH solution. The equivalence point is reached when 26.43 mL of NaOH solution is added. What is the concentration of the unknown H3PO4 solution
Antacid tablets are made from a variety of compounds. Sodium bicarbonate, magnesium hydroxide and calcium carbonate to name a few.
a mixture of 82.49 g of aluminum picture 26.98 gmol and 117.65 g of oxygen picture 32.00 gmol is allowed to react.
Calculate in how many years these signs will have to be replaced. Assume that the end lifetime is when the emission from the tritium is down to only 37% from the initial emission when installed
Butane C4H10 is a component of natural gas that is used as fuel for cigarette lighters. The balanced equation of the complete combustion of butane is
Calculate the mass defect in Fe-56 if the mass of an Fe-56 nucleus is 55.921 amu. The mass of a proton is 1.00728 amu and the mass of a neutron is 1.008665 amu.
the structure of the compound k2o is best described as a cubic closest packed array of oxide ions with the potassium
A system is expanded against an external pressure of 2 atm, changing its volume from 10 to 35 L and absorbing 765 J as heat from the surroundings
Eugenol can also be isolated from cloves using extraction with CO2. discuss the advantages and disadvantages of distillation versus CO2 extraction.
When the Vmax and the Km of an enzyme are not known, it is essential to determine the enzyme's initial velocity (Vo) at different [S]. To determine the initial velocity, one would have to: Select one: a. Use the Michaelis Menten equation
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