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Predict the distance between Si atoms in solid silicon. How does this compare to the distance between C atoms in diamond, Which has the same structure as solid silicon?
Suppose of nickel (II) bromide is dissolved in of a aqueous solution of potassium carbonate. Calculate the final molarity of bromide anion in the solution
When the reaction A + B = C is at equilibrium, the concentrations of different chemicals is as follows: [A] = 2.00 mM, [B] = 3.00 mM, and [C] = 9.00 mM. What is the standard free energy change for the reaction
A solution of a weak acid was tested with the indicators used in this experiment the colors observed were violet orange red blue and yello what is the approximate pH of the solution
What max of water can be heated from 15 degrees C to 100 by burning this piece of cool
compute the distance r in Angstroms at which the attractive portion of the L-J potential has diminished to an (absolute) value of RT (T=298K).
A sample of nitrogen gas in a 4.7-L container at a temperature of 28°C exerts a pressure of 3.6 atm. Calculate the number of moles of gas in the sample.
Phosphorus-32 is a commonly used radioactive nuclide in biochemical research, particularly in studies of nucleic acids. The half-life of phosphorus-32 is 14.3 days. What mass of phosphorus-32 is left from an original sample of 195 mg of Na332PO4 a..
How many grams of no2 will be produced when 5.00 moles of NO react?
Find delta H for the solution of one mole of NaOH in H2O If calorimeter constant is 11 cal/deg C
If a 88.2 gram charcoal briquette (assume pure carbon) is burned in an excess of oxygen, what mass of CO2 is produced by the reaction
a calorimeter contains 34.0 ml of water at 13.5 circc. when 1.80 g of rm x a substance with a molar mass of 70.0 gmol
Separation of acetone from water by using MIBK - How much MIBK must be used if the final acetone concentration in the water-rich phase is 5 wt%?
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