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Given stock solutions of 0.02 M tris pH 7.4 and 4 M NaCl, how would you prepare 10.0 ml of a 0.5 M NaCl, 0.01 M tris pH 7.4 (how many ml of tris, how many ml of NaCl, how many ml of water)?
What is the number of H's per signal and the splitting for each signal for 2 chloropropane in an NMR?
A quantity of HI was sealed in a tube, heated to 425C, and held at this temperature until equilibrium is reached. The concentration of HI in the tube at equilibrium was found to be 0.0706 moles/liter
How much HCl is leftover after the 20.0 mol of HCl reacts with the 12.5 mol of NaOH?
Calculate the freezing point of a solution that contains 30.0 g of urea, CH4N2O, in 200. g of water. Urea is a nonvolatile nonelectrolyte. Kf for H2O = 1.86°C/m.
how many moles of hydrogen ions were converted to water when 85. ml of 1.0 M hydrochloric acid were neutralized by sodium hydroxide.
Weight of Water Required, Calculate the weight of water required to steam distill 500mg of bromobenzene at 95 degrees Celsius.
The first-order decomposition of S2O6(g) to form SO3(g), has a half-life of 1.262 x 10-3 s at 45oC. How long will it take for 40% of a 0.34 M sample to decompose at 45oC
If He(g) has an average kinetic energy of 6410 J/mol under certain conditions, what is the root mean square speed of Cl2(g) molecules under the same conditions?
It takes 1.35 kJ of energy to heat a sample of pure silver from 12.0°C to 15.5°C. Calculate the mass of the sample of silver.
Predominant Organic Acids Present in Softwoods such as Pine, A wood chemistry course in which we are asked to explain the hierarchy of the organic wood acids present in softwood species like pine or spruce.
Newton's third law of motion can be stated like this: "For every action, there is an equal and opposite reaction." How are Le Chatelier's Principle and Newton's third law similar? How are they different?
N2 is .070 moles, O2 is 0.35 moles and CO2 is 0.20 moles, the total is pressure 1.55 atm what is the pressure of N2?
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