Explain what weight of pyrite ore must be taken for analysis
What weight of pyrite ore must be taken for analysis so that the BaSO4 precipitate weight obtained will be equal to one-half that of the percent S in the sample when a sample of pyrite ore (impure FeS2) is precipitated to the BaSO4.
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What volume will this sample occupy at the same temperature, but at 2.94 atm when a sample of cyclopropane (C3H6), a colorless gas with a pleasant odor that finds use a general anesthetic, occupies a volume of 2.00 L at 27o C and 1.00 atm pressu
A certain adjustment to machine will change the length of the parts it makes but will not affect the standard deviation. The length of the parts is normally distributed, and the standard deviation is 0.5 mm. After an adjustment is made, a random s
Divide the following reaction into half-reactions, balance the half-reactions, and combine the balanced half-reactions into the balanced overall equation for the reactions.
A mixture containing only AgCl3 and FeCl3 weighs 5.95 g. The chlorides are converted to the hydrous oxides and ignited to Al2O3 and Fe2O3. The oxide mixture weighs 2.62 g. Determine the percent Al and Fe in the original mixture.
What is the molecular formula of the compound when an analysis of a compound shows that it contained the 21.8% H and 78.2% B and hand a molecular weight of 27.6.
Consider P be the non-empty family of sets, consider I be non-empty set and consider {Ci} for all i in I be family of chains in P. Is intersection of Ci always a chain in P? Write the proof or the counter example.
Determine the numbers of mols of iron ion are there in the solution? Determine the numbers of mols of phosphate ion are there in the solution?
Determine the Variance and Standard deviation for the number of times the SAT is taken (to 4 decimals)?
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