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A second-order reaction has a rate constant , k, of 0.90 1/M.min. If the initial concentration of the reactant is 2.25 M , what will be the concentration of reactant after 10 minutes?
What is the effect on the calculated concentration of the standard solution if the trials of the pure KHP samples are consistently over-titrated to a deeper magenta color?
Rubidium has two common isotopes, 85Rb and 87Rb. If the abundance of 85Rb is 72.2% and the abundance of 87Rb is 27.8%, what is the average atomic mass of rubidium.
Describe the predicted effect on glycine biosynthesis in a mutant mammalian cell if there is a mutation in the 5'-IRE sequence of ferritin mRNA that reduces the Ka of IRP binding as compared t binding with wild-type mRNA
Construct a frost circle for imidazole with one 2p orbital on each atom of the ring, and show relative energy of all pi molecular orbitals. fill in the appropriate number of electrons
When 1.6768 g of an organic iron compound containing, Fe, C, H and O was burned in O2, 3.1363 g of CO2 and 0.89758 g of H2O were produced. What is the mass percent of hydrogen in the compound?
Calculate the mole fraction of the salt in the solution.
Compute the number of grams of H 2 SO 4 in 1 gallon of battery acid if the solution is 38.9% sulfuric acid by mass and has a density of 1.33g/mL ?
How many grams of FeSO4.(NH4)2SO4.6H2O (MW = 392.14) must be dissolved and diluted to 250.0 mL to prepare an aqueous solution that is 10.00 ppm Fe2+
The FDA recommends that women who are pregnant avoid eating more than three 6.00-oz servings of bluefish per month because of the relatively high mercury levels in that type of fish.
What is the pH of the final solution? Answer IS 7.58 Q 3.) What additional volume of 10.0 M HCl would be needed to exhaust the remaining capacity of the buffer after the reaction described in Part B?
A 4.369 g sample of metal is placed in a flask. Water is added to the flask and the total volume in the flask is read to be 126.4 ml. The mass of the water
the concentration of mud in the dirty stream from the settling basin to the lagoon is 4000 mg/L. Calculate the flow rates of the two discharge stream (L/s) that exit from the settling basin.
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