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Using the 1H, 13C, and DEPT spectra, along with chemical shift arguments and resonance theory, assign all of the peaks in the 1H and 13C NMR spectra of 4-propoxybenzaldehyde. Briefly explain you reasoning.
A scientist wants to make a solution of sodium phonsphate for a lab experiment. How many grams of sodium phosphate will be needed to produce 475 ml of solution that has a concentration of Na+ ions of 1.50 M?
Calculate the radius of a Au (gold) atom if Au atom has a face-centered unit cell ? it is given that its density = 19.32 g/cm 3 .?
Calculate the probability of finding an electron that is described by this wavefunction in a volume of 1.0 pm3 (i) centred on the nucleus.
Calculate the equilibrium constant Kp for the reaction, {rm SO_2 (g) + 2 H_2S (g) rightleftharpoons 3 S(s) + 2 H_2O(g)} at a temperature of 298 rm K
Standard potentials measured against the standard hydrogen electrode, Standard potentials are measured against the standard hydrogen electrode (S.H.E.). Because it is not always convenient to use a S.H.E
What substances are present after the reaction is over? How many grams of ammonia are formed? How many grams of the excess reagent remain after the reaction is complete?
calculate the H3O+ concentration in an aqueous solution at 25*C with an OH- concentration of 3.00 x 10^-2M
Application of Avogadro's law - To evaluate the volume of a gas using Avogadro's Law.
a sample of gas is collected over water at a temperature of 35.0C when the barometer pressure reading is 742.) torr. What is the partial pressure of oxygen?
Hydrogen peroxide decomposes to water and oxygen, and the activation energy for this process is 42 kJ/mol. The hydrogen peroxide formed in the biological process is harmful to tissue
How many atoms of neon occupy a volume of 14.3 L at STP.
If 4.00 g of the unknown compound contained 0.133 mol of C and 0.267 mol of H, how many moles of oxygen, O, were in the sample?
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