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Explain why the speed of sound is faster in solids than in gases. Include two other factors what can the speed of sound depend onthe speed of sound can depend on.
Let x1 and x2 represent the mole fractions of 1-propanol and 2-propanol in a liquid mixture, respectively, and y1 and y2 represent the mole fractions of each in the vapor phase. For a solution of these liquids with x1 = 0.660, calculate the compos..
A 2.9 m solution of methanol (CH3OH) in water has a density of 0.984 g/ml. What are the a) mass percent, b) molarity, and c) mole fraction of methanol in this solution?
Explain carefully and clearly why the energy of the "4s" subshell is lower in energy than the "3d" subshell in the energy level diagram for C(g); whereas the "4s" subshell is higher in energy than the "3d" subshell in the energy level diagram for ..
What is the speed of the three coupled cars after the collision? Answer in units of m/s.
170 mL of an HCl solution with pH of 2.60 is added to 200 mL of an HNO3 solution. The resulting pH is 1.40. What was the pH of the original HNO3 solution?
Determine what is element Y if you have a compound consists of element "Y" and H, only and know that it is 79.89% element Y by mass. Each molecule has 3.00 times as many H atoms as Y atoms?
Calculate: a. kg of pressed beans from stage 1 b. kg of extracted meal from stage 2 c. kg of final meal & wt% protein of it ans: 8723 kg, 8241 kg, & 7816 kg and 44.8 wt% protein.
Write the half-reactions for what must have happened at each electrode for the reactions. Indicate what was oxidized and what was reduced.
Perform whatever separations and tests you think necessary to determine which ions are in fact present
Calculate the energy required to heat 1.30 kg of ethane gas (C2H6) from 27.0°C to 78.0°C first under conditions of constant volume and then at a constant pressure of 2.00 atm.
Formulate a chemical reaction for a generic alkyl halide with silver nitrate in ethanol and with sodium iodide in acetone. In each case, which alkyl halides react faster?
Pyridine (C5H5N) is a weak base (pkb = 8.74) with an unpleasant, sweet fishy odour. In a titration, 175.0mL of pyridine solution required 13.6 mL of 0.3250M HCl to reach the equivalence point. a) Calculate the pH of the solution at the equivalenc..
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