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Element X has two natural isotopes: X-6 (6.015 amu) and X-7 (7.016 amu). Calculate the atomic mass of the element X given the abundance of X-7 is 92.5%
How many grams of Fe(NO3)3 · 9 H2O are required to prepare 300.0 mL of a 0.249 M solution of Fe(NO3)3 · 9 H2O?
How many grams of dry NH4Cl need to be added to 2.50 L of a 0.500 it M solution of ammonia, NH3, to prepare a buffer solution that has a rm pH of 8.99?
Hypochlorite Oxidation of Cyclohexanol to Cyclohexanone, Basically in this experiment, we took some cyclohexanol and reacted it with hypochlorite to form cycohexanone.
The normal boiling point of ethanol is 78.4 degrees C, and at this temperature ?vapHθ = 38.7 KJ mol-1. Calculate the value to which the pressure must be reduced to boil ethanol at 25 degrees C in a vacuum distillation.
Draw all products of the reactions of 4-Chloro-2-methyl-pentane with NaCN and AgCN. Identify the reaction mechanisms and draw resonance
As space exploration increases, means of communication between humans and other planets are being developed
A chemist at a pharmaceutical company is measuring equilibrium constants for reactions in which drug candidate molecules bind to a protein involved in cancer. Calculate the Kc value for the A-protein binding reaction.
170mL of an HCl solution with pH of 2.80 is added to 200mL of an HNO3 solution. The resulting pH is 1.40. What was the pH of the original HNO3 solution
what is the molar mass of the acid? If the standardization of the NaOH solution, why is it important to rinse the wet pipet with small portions of the standard oxalic acid solution
The infrared spectrum of the xanthene reduction product contains evidence that demonstrates that conjugation of the rings is still
The solution to physical chemistry, A laser used to read CDs emits red light of wavelength 700 nm. How many photons does the laser emit per second
1.0 mol of CaCN2 and 1.0 mole of water are mixed together: CaCN2 + 3H2O → CaCO3 + 2NH3 How much NH3 could be produced?
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