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For the cell reaction, Cu^2+(aq) + Zn(s) (arrow) Cu(s) + Zn^2+(aq), E^* cell = 1.10V. Use the Nernst equation to determine E cell when the molar concentrations of Zn^2 and Cu^2+ are 1.0 M and 1.0 x10^-7 M, respectively.
You run a metathetical reaction and produce NaCl as one of the products. Since NaCl is soluble in water, how can you ever recover solid NaCl to prove that you made it
how many grams of ethylene glycol automobile antifreeze rm c2h6o2 dissolved in 3.30 rm kg of water is needed to lower
what starting material are needed to prepare the following compound using malonic ester synthesis
Calculate the weight of potassium chlorate required to prepare 380 mL of wet oxygen collected over water at 20 Celcius and 750 mm of Hg.
This strontium isotope is radioactive, with a half-life of 28.1 yr. Calculate how long it will take for 0.890 g of the isotope to be reduced to 0.250 g by decay.
If you mixed 75 ml of 2 M HCl with 37.5 ml of 4 M NaOH, how many joules of heat would be released? How much would the temperature of the solution increase?
Using Slater's rules, calculate the relative effective nuclear charge on a 3p electron in : a)aluminum and (b) chlorine. Explain how results relate to:-the relative atomic radii of the two atoms
What is the pressure in atmospheres inside a container of gas connected to a mercury-filled open-end manometer when the level in the arm connected to the container is 22.5 cm higher than the level in the arm open to the atmosphere andthe atmospher..
a 251 mL sample of oxygen is collected over water at 25 deg C and 760 torr pressure. If the vapor pressure of water as 25 deg C is 23.8 torr, what is the pressure of the dry gas alone?
What salt is formed in the reaction between 0.13 mol H3PO 4 and 0.26 mol KOH? 2.51 moles of a gas occupies 50.88 liters, and its density is 1.43 g/L at a particular temperature and pressure. Calculate the molar mass of the gas.
A sample of glucose, C6H12O6, contains 1.265 x 1021 carbon atoms. (a) How many atoms of hydrogen does it contain?
Distilled water in equilibrium with air contais dissolved carbon dioxide at a concentration of 1.0 x 10^-5 M. Calculate the pH of such a solution.
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