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If 6.3 g barium chloride is reacted with excess sodium sulfate, how many grams of barium sulfate are produced?
why does the addition of EDTA terminate a reaction in which a restriction enzyme cleaves DNA
Write the structure of the product formed by treating montelukast with one equivalent of sodium hydroxide. Write the structure of the product formed by treating montelukast with one equivalent of HCl.
Nitromethane CH3NO2) burns in air to produce significant amounts of heat. 2 CH3NO2(l) + 3/2 O2(g) --> 2 CO2(g) + 3 H2O(l) + N2(g). delta H^0 reaction = -1418 kJ
Carbonyl fluoride, COF2 , is an important intermediate used in the production of fluorine-containing compounds. For instance, it is used to make the refrigerant carbon tetrafluoride, CF4 via the reaction If only is present initially at a concentra..
Compare the bond enthalpies of the carbon-carbon single, double, and triple bonds to deduce to an average π bond contribution to the enthalpy. What fraction of a single bond does this quantity represent
If 60.0 g of H3PO4 is dissolved in enough water to form 175 mL of solution, what is the molarity (M) of the solution
The following reaction is spontaneous only below 3000 K. What conclusions can be drawn regarding this reaction? A + B ® AB
what is a good conductor at high temperature and a poor conductor at low temperature? YBa2Cu3O7 GaAs S Cu
calculate the value for E for the cell at 25oC (b) A current is drawn from the cell until 1.20 g of silver have been deposited at the silver electrode. Calculate the value of E for the cell at that stage of operation.
Draw a mechanism for this reaction. All compounds involved in each stage of the mechanism must be enclosed in a box, and each box must be connected to the next one with a straight arrow. Use electron-flow (curved) arrows to show the movement of el..
The water level in a graduated cylinder was at 211 rises initially it raised to 270 after adding a piece of lead is submerged. Determine the mass in grams of the lead?
The Planck distribution gives the energy in the wavelength range dA at the wavelength A. Calculate the energy density in the range 650 nm to 655 nm inside a cavity of volume
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