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Galvanized nails are iron nails that have been plated with zinc to prevent rusting. The relevant reaction is Zn2+(aq)+2e- -> Zn(s) For a large batch of nails, a manufacturer needs to plate a total zinc mass of 1.60 kg on the surface to get adequate coverage. How many coulombs of charge are needed to produce 24.5 of solid zinc? Express your answer to three significant figures and include the appropriate units
calculate the amount of heat transfered when 24.0 g of CH3OH decompose at constant pressure. delta H is 126.4 kJ
Empirical Formula of a Compound and Conversion, The characteristic odor of pineapple is due to ethyl butyrate, a compound containing carbon, hydrogen, and oxygen
What was the nucleophile generated? What are the other products that can be formed in the presence of sulfuric acid?
Calculate the molality of a solution containing 292g glucose(C6H12O6) dissolved in 1.91L of water.
Calculate the percentage yield of 1M of potassium chromate (50 ml) and Lead (II) nitrate 1 mol (50ml) Which best represents the rate equation for the rate-determining step of this reaction
Given the following informationp redict whether or not the hypothetical ionic compound AX is likely to form. In this compound, A forms the A+ cation, and X forms the X?anion. Be sure to justify your answer.
reversible expansion from Pinitial=25.0 bar and Vinitial=4.50L to Pfinal=4.50 bar, (2) a single step irreversible expansion against a constant external pressure of 4.50 bar
You are checking the accuracy of a volumetric flask marked 10.00 mL. You measure the volume of water contained in the flask by measuring the mass of the empty flask
Hydrogen sulfide is a common and troublesome pollutant in industrial wastewaters. One way to remove H2S is to treat the water with chlorine, in which case the following reaction occurs
Calculate the resulting pH if 455 mL of 0.200 M HCl is mixed with 315 mL of 0.0850 M Ca(OH)2.
Theoretical yield for dehydration of 6.0 mL of cyclohexanol. this information was given cyclohexanol Molar Mass 100.16(g/mol) d 0.948 (g/mL) Cyclohexene Molar Mass 82.15 (g/mol) d0.811 (g/mL)
Calculate concentrations of OH- and the pH of each basic solution. Since NaOH donates on OH- ion for each NaOH molecule, the OH- concentration is equivalent to the NaOH molarity. The pOH is calculated as -log[OH-] and the pH is calculated as 14-pO..
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