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A silver block, initially at 59.9 degree centigrade, is submerged into 100.0 g of water at 24.4 degree centigrade, in an insulated container. The final temperature of the mixture upon reaching thermal equilibrium is 25.6 degree centigrade. What is the mass of the silver block?
Pressure of 0.923 atm is allowed to expand at constant temperature until its pressure reaches 0.377 atm. What is its final volume?
Commercial perchloric acid is 70.0% by mass, HClO4(aq), and has a density of 1.67 g/mL. Calculate the molarity of perchloric acid in the solution
a spoon was silver plated electrolytically in a silver nitrate solution. if 0.750 grams of silver was deposited on the
Which of the following is the best reason as to why increasing the NaCl concentration increases the temperature at which the two strands of DNA "melt" apart
Metals ions can also be placed in a spectrochemical series. In this case, larger effective nuclear charges generally lead to larger values for (delta) . Based on this principle, predict a spectrochemical series for the following ions
which is a better method for background correction and why? D2 or Zeeman? Could you list advantages and disadvantages of each?
the two most popular types of fuel for fuel cells are hydrogen and methane or natural gas. while hydrogen fuel cells
What statement below best describes the graph representing the integrated 1st order rate law plot of ln[a] vs t having a straight line negative slope equal to -k
A gaseous mixture of and has a density of 1.104 at 445 and 300 . What is the mole percent in the mixture?
How many moles of H2 can be produced from x grams of Mg in magnesium-aluminum alloy? The molar mass of Mg is 24.31 g/mol
How many grams of water are needed to dissolve 27.8 g of ammonium nitrate (NH4NO3) in order to prepare a 0.452 m solution
What mass of Ni metal can be produced by electrolysis from a solution of Ni2+ (aq) at a current of 15.0 amps for 1.00 hour
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