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Titration of an 360 mg sample of synthesized aspirin with 0.100 M NaOH solution required 20.30mL. what is the EMM of the sample and what is the % ASA?
The density of pure silver is 10.5 g/cm3 at 20°C. If 5.25 g of pure silver pellets is added to a graduated cylinder containing 16.1 mL of water, to what volume level will the water in the cylinder rise
Explain the chemical reactions that have possibly taken place in his body after the exercise. Discuss possible treatments for the freshman and how the treatment works chemically.
phenol is a common organic compound that may be used as a disinfectant. its pka in water is 10.0 while in methanol its
how much energy is liberated when 366 g of mercury (c=0.139j/g degrees celsius)cools from 77.0 C to 12.0 degrees celsius?
How many moles of NH4NO2 would be required to form 25 grams of N2 in the following reaction
A particular first-order reaction has a rate constant of 1.35x10^2 at 20 degrees C . What is the magnitude of k at 75 degrees C if Ea =85.6Kj/mol?
Silver has an atomic radius of 0.144 nm, an atomic weight of 107.87 g/mol and a density of 10.49 g/cm3 (cm cubed). Determine whether it has a BCC or an FCC crystal structure.
Calculate the rate constant (k) for the reaction (don't forget the unit). If you can somehow help me and maybe upload the worked out problem I would greatly appreciate it and thank you in advance
A 10.0 ml sample of aqueous HCl requires 18.66 ml of 0.206M NaOH to reach the endpoint . What is the molar concentration of HCl ? The chemical equation of the reaction is
the isomerization of cyclopropane to form propenenbsp is a first-order reaction. at 760 k 85 of a sample of
Gold has a face-centered cubic arrangement with a unit cell edge length of 4.08 Angstrom. How many moles of gold fit in a sheet with a length of 51.6 nm, a width of 24.3 nm, and a thickness of 16.7 nm?
Calculate the volume of water required to reconstitute (also referred to as solubilize) the entire contents of the vial of ovalbumin to a final concentration of 6.1 mM.
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