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Reaction of 1, 3-diethylpropanedioate with- Naoet, isobutly bromide as well as h+ h20, and heat. This is all the similar reaction.
Consider the following thermochemical equations : 8Mg(s) + Mg(NO3)2(s) ? Mg3N2(s) + 6MgO(s) ?H°rxn = -3884 kJ Mg3N2(s) ? 3Mg(s) + N2(g) ?H°rxn = +463 kJ 2MgO(s) ? 2Mg(s) + O2(g) ?H°rxn = +1203 kJ Use the above equations to calculate the ?H°f (in k..
Suppose 1 mole of hydrocyanic acid is dissolved in 1 liter of water. List the following species in order of decreasing concentration: HCN, H2O, CN-, H3O+
In a particular solution, [Cr3+]=3.9x10-4 mol/L. What is the minimum pH at which Cr(OH)3(s) will precipitate from this solution. Assume the temperature is 25oC. For Cr(OH)3(s), Ksp=6.3x10-31 at 25oC. Give your answer with three digits
a stock solution is prepared by adding 15 ml of 2.5 m bacn2 to enough water to make 20 ml. what is the cn-
Calculate the pressure exerted in the closed end of an apparatus similar to that depicted in Figure 1 if the atmospheric pressure is 720.0 torr and the height of the water column is 22.3cm.
the reaction mechanisms could be coupled, how many moles of ATP will be needed to drive
What are the units for absorptivity where the path length is given in centimeters and the concentration is expressed in. a. parts per million
What volume of ammonia at 25 °C and 1.5 atm pressure is needed to produce 500 g of urea?
The standard cell potential () of the reaction below is -0.34 V. The value of for the reaction is __________ kJ/mol. Cu (s) + 2H+ (aq) ? Cu2+ (aq) + H2 (g)
List the following in order of decreasing H3O+ concentration, highest to lowest. A) HC2H3O2, Ka= 1.8x10^-5 B) HClO, Ka= 3.5x10^-8 C) H3BO3, Ka= 7.3x10^-10 D) HC7H5O2, Ka=6.3x10^-5 E) H2S, Ka=1.0x10^-7
63.0 mL of a 1.20 M solution is diluted to a volume of 208 mL. A 104-mL portion of that solution is diluted using 157 mL of water. What is the final concentration.
A large cylinder of helium filled at 2000 lb/in^2 had a small orifice through which helium escaped into a space at the rate of 6.4 mmol/hour. How long would it take for 10 mmol of CO toleak through a similar orifice at the same pressure
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