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A solution is made by diluting 235 mL of 0.120 M Fe(NO3)3 solution with water to a final volume of 0.500 L. Calculate
a. The molarities of Fe(NO3)3, Fe3+, and NO3- in the diluted solution.b. The molarities of Fe3+ and NO3- in the original solution.
heparin was treated with dimethyl sulfate. the product was hydrolyzed under acidic conditions. draw the structure of
propane c3h8 is burned in a combustion chamber at a flow rate of 25.50 m3min with 30.0 excess air. if the propane and
We assume the first step in this decay series is, by far, the slowest and that all the 206Pb found in the sample is derived from this decay process. How old (in billions of years, where 1 billion = 109) is the rock
a calculator to calculate the average and standard deviation for x1 through x12. i know how to find the average but i dont understand how to findthe standard deviation.
Find delta E, delta H, q, and w for the change in state of 1.0 mol H2O(l) at 84 degree C to H2O(g) at 109 degree C. The heat capacity of H2O(l)= 75.3 J/molK, heat capacity of H2O(g)= 25.0 J/molK, and the heat of vaporization of H2O is 40700 J/mol ..
prepare a 4-6 page analysis by answering the questions below. be sure to cite your referenced using apa format. for
A soft drink contains 35 mg. of sodium in 315g. of H2O. What is the concentration of sodium in the soft drink in mass percent?
(Calculate using the given masses.) lighter isotope amu heavier isotope amu (c) Determine the average molecular mass of a Br2 molecule. amu (d) Determine the average atomic mass of a bromine atom. amu (e) Calculate the abundances of the two isotop..
lead(II) sulfide was once used in glazing earthenware. It will react with hydrogen peroxide to form lead (ii) sulfate and water. How many grams of hydrogen peroxide are needed to react completely with 265g of lead(ii) sulfide?
Explain why the extrapolated temperature is used to determine the maximum temperature of the mixture rather than the highest record temperature in the experiment.
How many mL of 5M NaCl are required to prepare 1500 mL of 0.002 M NaCl? What would be the concentration of the diluted solution from Problem expressed in mM, ?M, and nM
A 0.1510 gram sample of hydrocarbon produces 0.5008 gram CO2 and 0.128 gram H2O in combustion analysis. Its molecular weight is found to be 106.
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