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A 30.5-g sample of an alloy at 93.0°C is placed into 50.0 g of water at 22.0°C in an insulated coffee cup with a heat capacity of 9.2 J/K. If the final temperature of the system is 31.1°C, what is the specific heat capacity of the alloy? specific heat capacity of water = 4.184 J/(g.°C)
What is the pH of a solution in which 258 mL of HCl(g), measured at 27.5^circ C and 1.02 atm, is dissolved in 1.5 L of aqueous solution?
If the titrant has a molarity of 0.2750 M and there are 40.00 mL of analyte present, what is the molarity of the analyte?
What is the concentration of hydrogen ions in a solution containing 0.39 M HOCN(cyanic acid) and 0.726 M (NaOCN) (sodium shiu (ys6479) - Acid Base Buffers - dungan - (00533434) 3 cyanate).
The wavelength corresponding to the threshold frequency to tungsten surface is 230nm. Calculate the kinetic energy of the photoelectron ejected from the surface of tungsten metal.
Compounds containing carbon-carbon triple bond undergo the Diels-Alder reaction. Formulate the product formed by the reaction of
if 88.6L of H2 measured at STP is allowed to react with 158.3g of P4, what is the limiting reactant?
The annual production of sulfur dioxide from burning coal and fossil fuels, auto exhaust and other resources is about 26 million tons. the equation for the reaction is S + O2= SO2.
How many grams of acetylene are produced by adding water to 5.0 grams CaC2
Acetylene gas (C2H2) is produced as a result of the following reavtion. CaC2(s) + 2H2O(l) yield C2H2(g) +Ca(OH)2(aq)
36.45 mL of 0.11 M hydrochloric acid were added to 36.45 mL of 0.098 M aqueous barium hydroxide. Calculate the theoretical yield of the salt produced.
I am given the 10 ml of .200M Fe(NO3)3 and .25 ml of .00200 KSCN and 14.75 ml of .500 M of HNO3. How do I figure out the initial concentration of FE3+ and SCN-.
You are given the following data. S(s) + 3/2 O2(g) → SO3(g) ΔH = -395.2 kJ 2 SO2(g) + O2(g) → 2 SO3(g) ΔH = -198.2 kJ Calculate ΔH
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