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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?
why is vapor unlikely to behave as an ideal gas near the temperature at which the vapor would liquefy
Determine the total number of valence electrons in each of the following: a) COCl2; b) N2O; c) ClO2^-; d) SeCl2; e) PBr3
Gallium arsenide (GaAs) has the zinc blende structure. The gallium atoms are in FCC packing and the arsenic atoms occupy half the tetrahedral sites. Calculate the density of Gallium arsenide (GaAs) using the following data. Covalent Radius Ga 1.26 ..
calculate the values of E, G, and Keq for each of the following reactions at 298k. a) Sn + 2Ag^+ = Sn^2+ + 2Ag b) Cl2 + 2I^- = 2Cl^- +I2
write the structural formula of organic product that would result from the reactionch3-chch2
A .647 L sample of hydrogen chloride (HCl) gas at 1.12 atm and 23°C is completely dissolved in 885 mL of water to form hydrochloric acid solution. Calculate the pH of the solution.
A student titrated a 15.00mL sample of a solution containing a monoprotic weak acid with NaOH. If the titration required 13.36mL of 0.1015M NaOH to reach the equivalence point, calculate
The rate constants of some reactions double with every 10 degree rise in temperature. Assume that a reaction takes place at 315 K and 325 K. What must the activation energy be for the rate constant to double as described
the reaction below was studied at a high temperature. at equilibrium the partial pressures of the gases are as follows
What volumes of 0.50M HNO2 and 0.50M NaNO2 must be mixed to prepare 1.00L of a solution buffered at ph=3.55.
The specific heat of ethanol is 2.46 J/goC. Find the heat energy required to raise the temperature of 193 g of ethanol from 19oC to 35oC.
State the term symbol which incorporates orbital population as well as electron spin into one term and write out the molecular orbital as linear combination of atomic orbitals for the highest occupied molecular orbital (HOMO)
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