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A galvanic (voltaic) cell consists of an electrode composed of aluminum in a 1.0 M aluminum ion solution and another electrode composed of copper in a 1.0 M copper(II) ion solution, connected by a salt bridge. Calculate the standard potential for this cell at 25 °C.
Construct a simulated 1H NMR spectrum for 1,1-dichloroethane by dragging and dropping the appropriate splitting patterns into the boxes on the chemical shift baseline
a sample of nitrogen has a volume of 630 ml at a temperature of 49 degc. assuming that the pressure is constant what
Redox titrations are used to determine the amounts of oxidizing and reducing agents in solution. For example, a solution of hydrogen peroxide, H2O2, can be titrated against a solution of potassium permanganate, . The following equation represents ..
Calculate the wavelengths of the following objects: a) a muon(a subatomic particle with a mass of 1.884x10^-25 g) traveling at 3.00x10^2 m/s
Write a molecular equation for the reaction between ammonium sulfide and lead(ii) solution
How much energy in kJ is needed to heat 5.00g of ice from -10.0oC to 30.0oC? The heat of fusion of water is 6.01 kJ/mol and the molar heat capacity is 36.6 J/(oK.mol) for ice and 75.3 J/(oK.mol) for liquid water.
Combustion of 5.50 of this compound produced 8.07 of carbon dioxide and 3.30 of water. How many moles of carbon C, were in the original sample. How many moles of hydrogen H, were in the original sample
A water sample contains 118mg/L of bicarbonate ion, 19mg/L of carbonate ion, and has a pH of 9.5. What is the alkalinity of this water expressed as mg/L of CaCO3? Answer: 130mg/L as CaCO3.
It required 16ml of a sodium hydroxide solution titrated against a standard solution of 0.79g of potassium hydrogen phthalate in water to reach equivalence point. What is the molarity of the sodium hydroxide?
A solution contains Cr3+ ion and Mg2+ ion. The addition of 1.00 L of 1.55M NaF solution is required to cause the complete precipitation of these ions as CrF3(s) and MgF2(s). The total mass of the precipitate is 50.2g.
Which best describes a solid?
How many resonance peaks should be observed in the hydrogen - decoupled C 13 - NMR spectrum of each of the following compounds?
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