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a) What is the cell potential for the following standard cell? Cr(s) / Cr(NO3)3 // SnCl2, SnCl4 / Pt(s) b) Do you expect this cell to have a - or + ?Go?
on a recent autumn day the consentration of carbon monoxide in the air in downtown denver co. reached 3.0 x 10 2 ppmv.
When 280. mL of 1.50× 10-4 M hydrochloric acid is added to 125 mL of 1.75 × 10-4 M Mg(OH)2, the resulting solution will be
What mass of carbon dioxide is produced from the complete combustion of 7.00×10?3g of methane
The mass of an average blueberry is 0.72 g and the mass of an automobile is 1900 kg. Find the number of automobiles whose total mass is the same as 1.0 {rm mol} blueberries.
Calculate the mass of silver chloride in grams required to make 5.6 grams of silver plating?
Calculate the pH of the 0.20 M NH/0.26 M NHCl buffer. What is the pH after the addition of 20.0 mL of 0.050 M NaOH to 90.0 mL of the buffer solution? The Kb of ammonia is 1.8 x 10-5.
The reaction is CaO(s) + H2O(l) ? Ca(OH)2(aq) -- ?H = -83.7 kJ Assume the heat capacity of the solution is the same as pure water (4.184 J/g*°C), the density of the solution is 1.00 g/mL and there is no loss of heat to the surroundings.
C2H5OH solution has a density of 1.01 g/mL. Calculate the molarity of the C2H5OH solution
Celsius and -125 degrees Celsius , respectively. Calculate the entropy changes for fusion ( solid to liquid) and vaporization (liquid to gas ).
What volume of pure O2(g), collected at 27°C and 746 torr, would be generated by decomposition of 128 g of a 50.0% by mass hydrogen peroxide solution?
Calculate the moles of hydrogen gas produced by the reaction of 0.848 g of aluminum with hydrochloric acid Thanks
Write a net ionic equation for the reaction that occurs when cobalt(II) carbonate (s) and excess hydrochloric acid (aq) are combined.
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