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Consider a string with a length of 54.5 cm tied at both end (like on a stringed instrument). If the frequency of the first harmonic on the string is 256 Hz, determine the speed of the wave in the string. Post your answer in m/sand with 3 significant figures.
Calculate the mean displacement of the harmonic oscillator when it is in a quantum state ?. Use the Hermite polynomials in the attachment and the recursion relation to justify your answer through symmetry arguments.
A sample of an ideal gas has a volume of 2.21 L at 287 K and 1.11 atm. Calculate the pressure when the volume is 1.03 L and the temperature is 299 K.
Problem- Calculate the [H3O+] and pH of each of the following H2SO4 solutions. Calculate pH for 0.50 M solution.
We would like to make a buffer solution with a target pH of 8.44 (ignore activity). Suggest 3 conjugate acid/base pairs that could be used to make such a buffer.
air monitoring provides the following contaminant concentrations at the approximate center of a fire scene in which
how many moles of oxygen gas will be produced by the decomposition of 111.5 g of lead(II)oxide.
Calculate the percent yield of this organic reaction- C7H6O2------->C12H16O2. Molecular weight of C7H6O2 is 122.12 amount used 100g, Molecular weight of C12H16O2 192.25 amount recovered 125.9 g
1.indicate the solubility of the following solutes in 100 g of watera.potassium chlorate at 90 degcb.potassium nitrate
At 0.0oC, if the volume of air is 3.1 mL and the pressure of the atmosphere that day is 815 mmHg, what is the number of moles of air?
What is the value of Keq for the reaction 4 HCl(g) + O2(g) reverse reaction arrow 2 Cl2(g) + 2 H2O(g)?
What is the molality of a solution of ethylene glycol that contains 63.0 g of (CH2OH)2 dissolved in 557.5 g of water? Use molar masses with at least as many significant figures as the data given.
the solubility of adipic acid in water is 1.5 g per 100 ml at 15?c and 0.6 g per 100 ml in ether at the same
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