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At 850 c caco3 undergoes substantial decomposition to yield cao and co2. assuming that the delta hf values of the reactant and products are the same at 850 c as they are at 25 c calculate the enthalpy change (in kJ) i 198.7 g of co2 are produces in the reaction
Then draw the substitution product formed when this enantiomer reacts with NaCN in DMSO, and indicate the stereochemistry of the product.
What is the velocity of a hydrogen molecule after absorbing a photon @ 58.4 nm. What is the translational energy of the molecule in J mol-1
Draw a diagram of oseltamivir and label showing which atoms or functional groups could be involved in the binding of oseltamivir to the neuraminidase active site by
a 1.00 liter solution contains 1.00 mol of weak acid HX. After 0.60 mol of Oh- is added to this olution, the pH of the solution is 4.00. Calculate the Ka for the acid HX.
The compound she isolated was not 4-chlorobenzoic acid. What was the product and why was it obtained? Suggest a suitable route to the desired product. If possible just a to the point details about how you got the answer
Sylvanite is a mineral that contains 28.0 gold by mass. How much sylvanite would you need to dig up to obtain 50.0 of gold
Calculate pH and the concentration of acetate ion resulting from the mixtureof 400ml of 0.1M formic acid and 100ml 0.1 sodium acetate.
Vanadium crystallizes in a body-centered cubic lattice, and the length of the edge of a unit cell is 305 pm. What is the density of V
What is the pH of a buffer if 23 grams of sodium hydrogen phosphate and 10 g of sodium dihydrogen phosphate are added to 200 ml of distilled water. What is the molarity of phosphate ion in this buffer
Calculate the pH at the points in the titration of 40.00 mL of 0.425 M NH3 for the reaction below. NH3(aq) + HNO3 ? NH4+(aq) + NO3?(aq) For NH3, Kb = 1.8x10-5. Enter your answer with 2 decimal places. Enter scientific notation as 1.23E4
write the net ionic equation, excess concentrated sulfuric acid is added to solid calcium phosphate
The use of the British thermal unit (Btu) is common in much enginerring work. (1Btu=1054J). A Btu is the amount of heat required to raise the temperature of 1Ib of water by 1 degree F. How many QUADS of energy does world energy consumption quantit..
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