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Copper is electroplated from CuSO4 solution. A constant current of 4.00 amp is applied by an external power supply. How long will it take to deposit 1.00 x 10^2 g of Cu? The atomic mass of copper is 63.546.
Why was anhydrous, not wet, diethyl either used in the prepeatation and reaction of the Grignard reagent?
When the flask was re-filled with an unknown gas, the same number of moles leaked out in 2.84 hours. Identify the unkown gas.
The activation energy of the orginal pathway is 106 KJ/mol. What is the activation energy of the new pathway, all other factors being equal?
If 69. J of heat are applied to 20. g of aluminum, by how much will the temperature of the aluminum increase? (The specific heat capacity of Al (s) is 0.89 J/(g °C).)
using the hendersoon hasselbach equation calculate the pH of a solution made by adding 50.0mL of 1.00M sodium acetate to 50.0mL
Complete each of the following double displacement reactions and predict if the products will exist as (aq) or (s). A) Hg2(NO3)2+LiI B) NH4NO3+Li2CO3 C) NaCl+Li3PO4 D) AgC2H3O2+Cu(NO3)2
imagine that you have two iron blocks one with a mass 226 g at a temperature of 46.0 oc and another with a mass 380 g
The equation for the combustion of gaseous methanol is: 2CH3OH(g) + 3O2(g) ? 2CO2(g) + 4H2O(g) Estimate the ?H°rxn per mole of methanol combusted, using the bond energy data provided below
Given the following equation, how many grams of PbCO3 will dissolve when 1.5L of 1.00 M H+ is added to 6.00g of PbCO3? PbCO3(s) + 2H+(aq) = Pb^2(aq)+ +H2O (l)+ CO2(g)
compute the water volume that is released upon its total metabolism to carbon dioxide and H 2 O, taking into account any oxidative phosphorylation that might occur.
Phosphorous acid, H3PO3(aq), is a diprotic oxyacid that is an important compound in industry and agriculture.( pKa1=1.30, pKa2=6.70.) Calculate the pH for each of the following points in the titration of 50.0 mL of a 2.7 M H3PO3(aq) with 2.7 M KOH..
43.8 ml of 0.170 M HCl is needed to neutralize 37.6 ml of Ba(OH)2 solution. What is the molarity of the base. 2 HCl + Ba(OH)2 =BaCl2 +H20
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