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A 200 g sample of water with a temperature of 32?C is added to 50 g water at 55?Cin an insulated container. What is the final temperature after thermal equilibrium is reached? The specific heat of water in the liquid state is 4.18 J/g?C, in the solid state is2.09 J/g?C, and in the gaseous state is 2.03J/g?C. The heat of fusion is 334 J/g and the heat of vaporization is 2260 J/g.
Consider the reaction between Mercury Iodide (Hg2I2) and sulfur yielding mercury (HgS) sulfide and iodine (divalent molecule). Which element is reduced
The second is defined as a fractional part of a mean solar day. Express one second as a fraction of a mean solar day based on your knowledge that there are 60 s in 1 min, 60 min in 1 h, and 24 h in one mean solar day.
Find a parametric representation for the plane that passes through the point (?2, 2, 1) and contains the vectors i + j ? k and i ? j + k.
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Evaluate the z-component of the angular momentum and the kinetic energy of a particle on a ring that is described by the (unnormalized) wavefunctions e^iΦ ,e^-2iΦ ,cosΦ ,(cosφ)e^iΦ , (sinφ)e^-iΦ
Calculate the cell potential of the following voltaic cell Zn / Zn2+ ( 1.0 x 10-8 M) // Cu2+ (1.0 x 10-6 M) / Cu a. + 1.16 V b. + 1.03 V c. + 1.14 V d. + 1.06 V e. + 1.10 V
The presence of reductants can enhance the thermodynamic favorability of the decomposition of nitrous oxide (N2O). Calculate deltaH
Three isomeric ketones with the molecular formula C7H14O are converted into heptane by Clemmensen reduction. Compound A gives a single product on Baeyer-Villiger oxidation; compound B gives two dissimilar products in very different yields
The kidneys function to eliminate ammonia from the blood. Based on the pK value, what is the molecular form that predominates in the blood? Could this molecule easily diffuse through the ehydrophobic lipid membrane of a kidney cell? Explain.
Describe the color change of a positive Benedicts test and What group reacts with the Benedicts reagent
A colored compound or complex ion provides a preliminary indication of the presence of which of the aluminum Group ions? Give the chemical formula
The pressure inside a hydrogen-filled container was 2.10 at 21 . What would the pressure be if the container was heated to 90
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