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The overall reaction 2Co3(aq) + 2Cl(aq)---> 2Co (aq) +Cl2(g) has the standard cell voltage Ecell=0.46V. Given that Cl2(g) +2e -->2Cl (aq), E=1.36V, calculate the standard reduction potential for the following half reaction at 25 degrees C, Co3 +e-->Co2
What is the resulting pH of this solution? b. The OCl- form of this acid is less effective as a disinfectant
What is the work in kilojoules done during a synthesis of ammonia in which the volume contracts from 7.0 L to 4.3L at a constant external pressure of 47 atm?
identify the two important classes of catalysts. analyze the chemical reactions that take place when a biological
A 40-foot "fiberglass" boat hull weighs 2000 kg. Sixty percent of that is a fully cured crosslinked polyester resin (the remainder is the glass reinforcing fibers
What type of reaction occurs prior to the substitution reaction to form a new good leaving group? And please explain why? a. nothing b. an acid base reaction
A student is given four solid samples labeled W, X, Y, and Z. All have a metallic luster. She is told that the solids could be gold, lead sulfide, mica (which is quartz or SiO2), and iodine.
If a solution of sea water was found to have a molarity of .26 m, what is the new freezing point of this water? (Kf = 1.86 degrees C/M)
Liquid sodium is being considered as an engine coolant. How many grams of liquid sodium (minimum) are needed to absorb 4.00 MJ of energy (in the form of heat) if the temperature of the sodium is not to increase by more than 10.0 °C? Use CP = 30.8 ..
In the following reactions all reactants and products are gases. Which of the reactions, if carried out in a closed container at constant T, would proceed with an increase in pressure
Concentrated hydrochloric acid, HCl, has a composition of 37.5 %. The solutes molar mass is 36.461 g/mol. You may assume the molar mass of water is 18.015g/mol.
the hope diamond weighs 44.0 carats. determine the volume occupied by the diamond given that its density is 3.5 gcm3 at
Which of the following is an accurate comparison of the properties of nitrogen and oxygen. A. Nitrogen uses more oxidation states in its compounds than oxygen does
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