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Assignment:
What does the grapefruit peel extraction is all about? Can the grapefruit peel extract as a solvent for sterilizing lab glassware?
At a certain temperature, the ph of a neutral solution is 7.73. What is the value of Kw at that temperature
Use stoichiometry and the balanced reaction below to calculate to moles of NaOH added at the equivalence point from the mass of ammonium chloride used.
A 300.0 mL salt water sample contains 0.308 mol NaCl. Calculate the concentration of NaCl in the sample.
Calculate the fraction of Asp that has a side chain protonated at pH 7.0 (aspartic acid side chain pka = 3.86)
Concentrated sodium hydroxide (NaOH) is 19.4 M, has a density of 1.54 g/mL, and is a strong electrolyte. What is the molality of 19.4 M NaOH? Assume NaOH(aq) dissociates completely to produce two moles of ions per mol NaOH.
What is the molarity of a solution that contains 169.3 g of sodium chloride dissolved in 597 mL of solution
A 0.0623g sample of cobalt sulfate was dissolved in dilute HCl and treated with 10% BaCl2 solution. The BaSO4 precipitate weighed 0.1075g. Determine the formula of this sulfate of cobalt.
If fluid inflow rate to a reactor is 6 liters/min, and the desired conversion is 85 % for a first order reaction in the reactant, A, what is the minimum reactor volume required if the reactor used is CSTR
Problem- You are using the following procedure from your lab instructions to determine the copper content of a brass sample: "Approximately 35 mg of a dried brass sample (accurately measured) is put into a 250-mL Erlenmeyer flask.
Draw one eclipsed and one staggered conformation of 2,3-dimethylpentane using: Newman projections that sights down the C2-C3 bond, Sawhorse projections that sights down
Compare mass, charge, and location of the subatomic particles in the atom. Particles are Proton, Nuetron, Electrons. What is the Mass,
The sequencing of the Neanderthal genome has prompted speculation that it might be possible to genetically engineer a living Neanderthal.
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