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A periodic wave has a period of 0.40 s. What is the wave frequency? What is the period of the wave motion for a wave with a frequency of 0.50 kHz? Compute the wavelength in air of ultrasound with a frequency of 50 kHz if the speed of sound is 344 m/s.
Predict the major organic product formed in the addition of HBr to 2,3-dimethyl-2-butene. Provide a stepwise mechanism for the reaction, showing all electron movement using the curved arrow convention.
A sample of nitrogen gas that occupies a volume of 31.2 L at a temperature of 0 oC and a pressure of 1 atm contains , answer in moles of gas please.
Although the solution of 2, 6-dichloroindophenol had known amounts of solute and solvent, explain why was it necessary to standardize it before using it
10.2 g of ice at -4.8oC is added to 164 mL of water at 50.1oC. What is the final temperature (oC) of the mixture
protons can be accelerated to speeds near that of light in particle accelerators. estimate the wavelength in nm of
Calculate the amount of acid that would be left in the water solution after four 20-mL extractions with ether. Do the same calculation, using one 80-mL extraction with ether, to determine which method is more efficient.
Both potassium chloride (KCL) and potassium hydroxide (KOH) are very soluble in water. However, as one increases the temperature of the solution, KCL becomes more soluble and KOH becomes less soluble. Explain
A gaseous mixture of 02, H2 and N2 has a total pressure of 1.50atm and contains 8.20g of each gas. Find the partial pressure of each gas in the mixture?
1)Garage that specializes in foreign cars had a small magnesium fire when a car part was ignited. The mechanic knew from his training that he should not use water but could use a dry powder like a sodium chloride based fire extinguishing powder (MET-..
a solution of sodium thiosulfate was standardized by dissolving0.1249 g kio3 214.00 gmol in water adding a largeexcess
GaAs and GaP (Eg = 2.26 eV) make solid solutions that have the same crystal structure as the parent materials, with As and P randomly distributed throughout the crystal GaPxAs1-x Exists for any value of x. If we assume that the band gap varies lin..
Imagine two solutions with the same concentration and the same boiling point, but one has benzene as the solvent and the other has carbon tetrachloride as the solvent
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