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A 76.0-gram piece of metal at 96.0 °C is placed in 120.0 g of water in a calorimeter at 24.5 °C. The final temperature in the calorimeter is 31.0 °C. Determine the specific heat of the metal. Show your work by listing various steps, and explain how the law of conservation of energy applies to this situation
Determining the pKa's of acetic acid (CH3COOH) and hydrofluoric acid (HF) (using 20 mL 0.2 M solutions) by measuring the titration curves of the two using 0.2 M NaOH as the titrant. Based on the pKa determined from the titration curve, select the bet..
If the atmospheric pressure at 30.0 km is 28.0 torr and the temperature is -44.0 °C, what is the volume of the balloon when it bursts?
What is stray light. How does it affect the performance of the spectrometer? Can one minimize it in the design of a spectrometer.
How would you compare and contrast the similarities and differences between ionic and covalent bonding?
PbCl2 has a Ksp of (1.7 x 10^-5) while it dissolves it has an ionic strength that interferes with itself. Using activity, iterations along with approximations, compute the number of grams of PbCl2(s) that dissolves in 750 Ml of H20.
Explain how many elements would be in the first two rows of the periodic table in this universe. Explain what would be the atomic number of the element in the second row and fourth column
If the actual yield is 220.0 g and the theoretical yield is 275.6 g then what will be the percent yield of ferrous sulfide.
What are your actual experimental ratios? Give possible reasons for any observed variations from these ratios.
An experiment requires 15.0 g of cyclohexane, whose density at 25 c is 0.7781 g/ml. what volume of cyclohexane should be used
Draw viable Lewis structures to illustrate how the element bromine can take part in an ionic bond, a pure covalent bond, and a polar covalent bond.
Calculate the density of a block.
Tris is widely used in a biochemical laboratory. Its acid dissociation constant is 8.32x10^-9. You have available at your lab bench a 0.1M solution of Tris in its protonated form, 0.1M solution of HCl and NaOH,
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