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Imagine that you are climbing a mountain.
(a) Is the distance you travel to the top a state function? Why or why not?
(b) Is the change in elevation between your base camp and the peak a state function? Why or why not?
what mass of H2O is required to form 1.6 l of O2 at a temperature of 273 k and pressure of .936 atm
copper metal has a density of 8.92 gcm cubed at 20 degrees c and 8.83 gcm cubed at 100 degrees c. calculate the change
The initial concentration of lead(II)nitrate is 0.250M. and we used 1.00 ml. the lead(II)nitrate was titrated with 7.96 ml of 0.0500M of potassium iodide. A) Determine the concentration of lead(II) ion. B) Determine the iodide concentration. C) Det..
The mass of a 150 ml beaker was determined to be 82.123 g. A sand- salt mixture was placed in the beaker and the mass of the beaker plus the mixture was determined to he 86.246 g.
Extremely small crystals composed of 1000 to 100,000 atoms called quantum dots, are being investigated for use in electronic devices. A- A quantum dot was made of solid silicon in the shape of a sphere with a diameter of 9 Compute the mass of the ..
What causes an atom, molecule, or ion to be paramagnetic. Which of the ions (Pb2+, Pb4+, S2-, Fe3+, Zn2+) are paramagnetic. What term describes the magnetic properties of the others
Calcium Nitrate will react w/ ammonium chloride at slightly elevated temperatures, as represented in the equation. Ca(NO3)2 (s) + 2NH4Cl(s) ? 2N2O(g) + CaCl2(s) + 4 H2O (g)
What is a probable molecular formula for product Y, and what is a probable molecular formula for X - Draw an electron-dot structure for Y, and predict the geometry around the central atom.
A 3.5514 g of a chromium oxide was found to contain 2.4299 g of chromium and 1.1215 g oxygen. What is the empirical formula for this chromium oxide
Three trials to determine concentration of unknown substance. Values: .210 M,.198M, .203 M . The actual concentration is .135 M.
Standard reduction potentials are given on the next page. (a) Draw a diagram of the electrochemical cell, labeling all electrodes and solutions. (b) What is the pH in the Pt | H+ | H2 half-cell? (c) What is the value of the equilibrium constant fo..
A diatomic gas X2 reacts with another diatomic gas Y2 to form gaseous XY3. 5,00 g of X2 contains 1,07 x 1023 molecules of X2. The compound XY3 contains 82,25% X by mass. Identify element X and Y
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