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An electrochemical cell is constructed with a zinc metal anode in contact with a 0.052 M solution of zinc nitrate and a silver cathode in contact with a 0.0042 M solution of silver(I) nitrate. What is the value of Q to use in the Nernst equation for this cell?
Heptane can appear harmless, but when ignited, it explodes violently. What is the first law of thermodynamic?
Calculate the number or calories of heat energy required for warming 34.6g of water from 18.9 celsius to 29.9 celsius
A flask is filled with vapor by boiling a volatile unknown liquid in the flask. As it boils away, the vapor of the unknown pushes the air out of the flask through a tiny pinhole opening and eventually the flask is filled with an atmosphere compose..
Calculate the amount of heat required to completely sublime 78g of solid dry ice at its sublimation temperature. The heat of sublimation for carbon dioxide is 32.3kJ/mol .
Silver chloride, often used in silver plating, contains 75.27% Ag.Calculate the mass of silver chloride in grams required to make 4.4 grams of silver plating.
Biocarbonate ion can react in water to produce hydroxide ions and carbonic acid according to the equation below.
Consider the situation in which 1.60 mL of an aqueous CuSO4 solution of unknown concentration is diluted to a volume of 10.00mL.
Does the body have an impact on the brain? If so, how much? What do you have to back up your position?
What scientific principle or law is used in the process of balancing chemical equations. Define the terms limiting reactant and excess reactant.
A 29.0-g sample of water at 260. K is mixed with 48.0 g water at 300. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
Uric acid dissociates as shown in the figure at the right with a pKa of 5.80, and can be treated as a simple monoprotic acid in this pH range.
the fraction of the initial mass of gas remaining in the tank if carbon dioxide obeys the ideal gas and PR equations of state
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