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Sodium hydroxide has a lattice energy of -887 and a heat of hydration of -932 . How much solution could be heated to boiling by the heat evolved by the dissolution of 21.5 of ?
At what temperature the molecules of CO2 would have a rms velocity equal to that of H2 molecules at 24 * C?
What mass of the hydrate could be recovered from the solution? When separated from a H 2 O solution, copper sulphate forms a hydrate with 5
What is the NORMALITY of a solution of KOH if 45.18 mL are required to neutralize 0.3g of pure oxalic acid H2C2O4 . 2H2O
In Horner-Wadsworth-Emmons reaction, a 1,2-disubstituted alkene was produced in which the olefinic protons exhibited at vicinal coupling of 9.0 Hz in the 1H NMR. What is the stoichiometry of the double bond.
Calcium carbide (CaC2) reacts with water to form acetylene (C2H2) and Ca(OH)2. From the following enthalpy of reaction data, calculate Δf for CaC2(s)
Lactic acid, C3H6O3, is a monoprotic acid that is available in solid form. Determine the concentration of an unknown solution of sodium hydroxide
Calculate the standard change in Gibbs free energy for the following reaction at 25 °C. 2C2H6 (g) + 7O2 (g) -> 4CO2 (g) + 6 H2O (g) ? kJ
How many spots should you see on a TLC plate for your recrystallized benzoic acid (assuming your recrystallization worked)
The solubility product constant (Ksp) for the dissolution of CaF2 as represented by the chemical equation is 3.4 x 10-11. CaF2 (s) Ca2+ (aq) + 2 F- (aq) Calculate the molarity (M) of Ca2+ in a saturated solution of CaF2
angela derives utility from coca-cola c and attending rock concerts r. her utility function is urc c0.9r 0.1 where c
if the total amount of energy emitted by a carbon sample is 1.98x10^5 J, determine the number of carbon atoms present in the sample, assuming that each atom emits one photon
What is the maximum strength of acetic acid waste ( as TOC in mg/L) that can be discharged without violating either permit requirement? ( recall that TOC in mg/L , measures the number of miligrams of carbon per liter)
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