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Lead metal can be extracted from a mineral called galena, which contains 86.6 % lead by mass. A particular ore contains 68.5 % galena by mass.If the lead can be extracted with 92.5 % efficiency, what mass of ore is required to make a lead sphere with a 4.00 cm radius?
What products result from the addition of aqueous solutions of F_e (C_2 H_3 O_2 )_2 (aq)and N_a3 PO_4 (aq)?
A 10 mL aliquot of a 10 M solution diluted to 250 mL A 25 mL aliquot of a 10 M solution diluted to 250 mL A 57 gram beaker that weighs 82 grams after NaCl is added transfers all of the NaCl into a 100 mL volumetric flask and dilutes it to the mark..
Assuming all of the bromobenzene is converted to phenylmagnesium bromide, what is the concentration in mol/L of a grignard solution that is prepared from 30 ml of bromobenzene, an excess of magnesium metal, and enough diethyl ether to make total v..
How much heat is evolved when 265 g of ammonia gas condenses to a liquid at its boiling point
If solar radiation is 1200 W/m^2 , how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504 for solar radiation. A green leaf has a surface area of 2.15 cm^2.
explain why pure water does not conduct electricity and what happens when a strong electrolyte is dissolved in it
What half-reaction will occur at the anode in the electrolysis of an aqueous solution of gallium chloride (GaCl3)
As the molar concentration of an acid decreases, the reaction rate with an active metal, such as magnesium, is expected to?
Fe2O3 are actually obtained from 4.86 g Fe, what is the percent yield? c. Under other conditions, the percent yield is 75.6%. How many grams of Fe2O3 are formed from 4.86 g Fe under these conditions
what is the approximate concentration of the solutionapproximate concentration of the solution in rm molrm kg if 1 rm
Diamond has a face-centered cubic unit cell, with four more C atoms in tetrahedral holes within the cell. Densities of diamonds vary from 3.01 g/cm3 to 3.52 g/cm3 because C atoms are missing from some holes.
Given the following value, tell whether the starting material or product is favored at equilibrium. delta H=6.5 kcal/mol. Is this a starting material favored, or product favored
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