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Can humans hear ultrasound? Give some examples of applications of ultrasound. Why does the music coming from a band marching in a spread-out formation on a football field sometimes sound discordant?
Calculate the pH of a solution formed by mixing 5.00 mL of 0.015 M HBr with 20.0 mL of 0.200 M HCL.
Benzene exhibits primary and secondary UV bands. The band at 185nm appears to correspond to the Homo-Lumo transition described using a Frost circle. What is the transition that represents the forbidden bands at 254 and 204 nm (in simple terms).
Use the systematic treatment of equilibrium to determine the pH and concentrations of species in 1.00 L of solution containing 0.070 mol lysine (HL), 0.055 mol aspartic acid (H2A), and 0.0080 mol NaOH. Consider just acid-base chemistry.
calculate the expectation values of p and p^2 for a particle in the state n=1 in a square well potential
A sample of S8(g) is placed in an otherwise empty rigid container at 1325 K at an initial pressure of 1.00 atm, where it decomposes to S2(g) by the reaction S8(g) 4S2(g) At equilibrium, the partial pressure of S8 is 0.25 atm. Calculate Kp for th..
The standard free energy of activation of a reaction A is 76.8 kJ mol%u20131 (18.4 kcal mol%u20131) at 298 K.
Calculate the E0 for the following reaction by using the standard reduction potentials data in your lab manual. Write net ionic equation and half reactions of Cr2O72- oxidizing Sn2+ in acidic aqueous solution. Find an calculate their E0
In molar chemistry, the number of moles of solute present in 1 kg of a solvent is called its?
Calculate the final temperature of the mixture, assuming no heat is lost. The heat capacities of Hg and H2O are 27.98 and 75.33 J/mol/K, respectively.
Consider a 1.0-L sample of helium gas and a 1.0-L sample of argon gas, both at room temperature and Explain atmospheric pressure.
mixing solutions of k2so4aq and bacl2aq produces an insoluble salt. which is the correct list of the ions which will
Question- The observed Ecell for this electrochemical cell was 1.13 V. In this cell, nickel was used as the reference
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