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Magnesium metal reacts with HCl solution, liberating H2 gas and generating Mg2+ cations in solution. A 2.965-g sample of Mg metal is added to 75.0 mL of a 4.00 M HCl solution, and the reaction goes to completion. How many grams of H2 are formed?
For the reaction below, Kc=4.50x10^11 at 25oC. A(g) + 2B(g) C(g) In an experiment, 1.00 mol A and 1.00 mol B are combined in a 1.0L reaction vessel. What are the equilibrium concentrations of A, B and C
The initial rates at various substrate concentrations for an enzyme-catalyzed reaction are as follows.
Six moles of hydrogen gas at 0 degrees C is forced into a steel cylinder with a volume of 200mL. What is the pressure of this gas
What is the purpose of the sodium carbonate in Part A. Why do we add glacial acetic acid in Part 1B when we react N,N-dimethylaniline, but we don;t use it with the other aromatic couplings reagents
What volume of N2O, collected over water, at a total pressure of 94kpa and 22 Celcius, can be produced from 2.6g of NH4NO3.
(a) Calculate the minimum voltage required to produce 1 mole of aluminum at this temperature. (b) If the actual voltage applied is exactly two times the ideal value, calculate the energy required to produce 2.33 kg of the metal.
The absorbance at 595 nm was 0.78 and, according to a standard curve, corresponds to 0.015 mg of protein on the x-axis. What is the protein concentration of the original solution?
Assuming that no lead was originally present, that all the 206Pb formed over the years has remained in the rock, and that the number of nuclides in intermediate stages of decay between 238U and 206Pb is negligible, calculate the age of the rock.
You have discovered a new element with an atomic weight of 260 g/mol and a density of 30 g/cm3. If the atoms pack on a BCC lattice what is the hard sphere atomic radius R (in nm)
The freezing point depression of water is a rather small 1.86 deg C kg/mol. Addition of 0.454 g of zinc chloride to 3.33 g of water lowers the melting point by 5.2 deg C. Calculate the expected melting point for this mixture and account for any di..
a solution is prepared by dissolving 1.98 g of an unknown nonelectrolyte in 21.00 g of cylcohexane tf 6.6 oc and kf
the acetylsalicylic acid into sodium acetylsalicylate but not give excess of sodium hydroxide in your solution? sodium hydroxide has a molecular weight of 40.00grams/mole
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