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A Newtonian fluid with a viscosity of 0.38 Ns/m2 and a specific gravity of 1.03 flows through a 28 mm diameter pipe with a velocity of 2.7 m/s. Determine the Reynold number.
This question accepts answer as the whole number only.
The Ka for a weak acid, HA is 1.6x10^-6. What are the pH and the degree of ionization of the acid in a 10^-3 M solution. Also calculate pKa and pKb.
Determine the compounds Cl2, HCl, F2, NaF and HF which compound has a boiling point closest to that of argon. Define
The hydrogen gas formed in a chemical reaction is collected over water at 30 at a total pressure of 737. What is the partial pressure of the hydrogen gas collected in this way
A serum sample of a concentration of 23.0 ppm. How many mL of 0.010M EDTA solution would be added to 100 mL of serum sample to get to a final
Ephedrine was once used in diet pills that could be purchased without a prescription. Ephedrine is composed of 72.7% C, 9.15% H, 8.49% N, and 9.68% O.
The photon emitted or absorbed during an electronic transition between n = 1 and n = 2 in a hydrogen atom has a wavelength in the ultraviolet portion of the electromagnetic spectrum and an energy that is greater than a similar electronic transitio..
Depict Lewis structures of the four molecules and/or ions with the formulas given below and figure out which two of these are isoelectronic with each another. Species which are isoelectronic have the same number of atoms
1) Explain how long would it take before a lethal concentration is reached with a well tuned car. Define how long for the poorly tuned car. 2) State the mass balance equation for this solution using simply variables and eliminating terms that are ze..
A radioactive isotope may change a proton into a neutron in an attempt to become more stable. While doing so, a particle is emitted from the nucleus of that isotope.
A certain 1.00 L buffer contains 0.600 mol of a base and 0.430 mol of the conjugate acid. The pH is 8.30. What is the pKa fo the conjugate acid
Justify your classification of the chemical equation for celluar repiration. So how how would you classify this. Electrochemistry has a wide range of applications. Research and describe one job, outside the field of chemistry, that uses electrochemic..
H-NMR has chemical shifts between +12 to -4. Explain what does having chemical shifts in the negative region mean
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