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A 7.50 piece of iron at 100*C is dropped into 25.0g of water at 22.0*C. Assuming that the heat lost equals heat gained, determine the final temperature of the iron/water system. Assume a heat capacity of water of 4.18J/gK and of iron of 0.45J/gK.
A room temperature aqueous solution is 0.10 M in zinc acetate, 0.50 M in strontium acetate and 15.2 M in nickel (II) acetate. At what concentration of carbonate
A 4.50-g sample of liquid water at 25.0 C is heated by the addition of 133 J of energy. The final temperature of the water is __________ °C. The specific heat capacity of liquid water is 4.18 J/gK.
Rb-87 decays with a half-life of 48.8 billion years to Sr-87. For short periods of time, there are so few decays that the number of changed nuclei is far smaller than the experimental error. The current limit on object ages therefore is 100,000,00..
the ferrous ion fe2aq reacts with the permanganate ion mno4- aq in an acidic solution to produce the ferric ion fe3aq.
Which of the following gases deviate most from behavior of ideal gas: CO2, O2, He, N2, CH4
A piece of metal of mass 13 g at 103?C is placed in a calorimeter containing 53.5 g of water at 21 ?C. The ?nal temperature of the mixture is 57.2 ?C. What is the speci?c heat capacity of the metal.
Write a suitable mechanism for the cleavage of butyl isopropyl ether with HI at 100 degrees Celsius to form exclusively isopropyl alcohol and 1-iodobutane.
What happens to the pattern if we try to determine which slit the electron goes through by using a laser placed directly behind the slits
A 10.00 g sample of sucrose (C12H22O11) was dissolved in 200.0 g H2O. What will be the vapor pressure of this solution at 100C? Sucrose is non-disscociated, non-volatile solute.
What is the sequence of the peptide? Use the one-letter abbreviations for the amino acids, and do not use dashes.
What mass of glucose can be produced from a photosynthesis reaction 6CO2(g) + 6H2O-> C6H12O6(aq) + 6O2(g) that occurs using 18.4 mol CO2? Answer in units of g.
An increase in which of the following will occur if the reaction temperature is increased? I. Energy of activation II. Collision frequency III. Fraction of collisions with sufficient energy
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