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Determine the chemical formula of each of the following compounds and then use it to calculate the mass percent composition of each constituent element.
If a stronger solution of sodium bicarbonate was used in experiment, would it require more or less acetic acid to neutralize and why? If a weaker solution of sodium bicarbonate was used, would the solution require more or less acetic acid to neutr..
For UV light of wavelength 254 nm, calculate the frequency and the amount of energy absorbed by a single molecule when it absorbs a quantum of this light. (Remember ??=c, where c = 3.00 x 108m/s and E = h?, where h = 6.63 x 10-34 J·s) 1nm = 1x10-9..
how many liters of softened water containing a sodium concentration of 5.8times10-2 sodium by mass have to be consumed
You already have a solution that contains 10 (millimoles) of acetic acid. How many millimoles of acetate (the conjugate base of acetic acid) will you need to add to this solution? The pKa of acetic acid is 4.74.
A solution of 0.1% sodium dodycl sulfate (SDS) binds so strongly to polypetide chains that one detergent molecule is sufficient to saturate two amino acid residues.
A 12.00 milk chocolate bar is found to contain 9.200 of sugar. What will be the amount of sugar in milligrams if the size of the chocolate bar is reduced from 12.00 to 5.000
Iron vapor produces an emission spectrum that includes an intense peak at 527.0 nm. Determine the frequency (in Hz) for this type of electromagnetic radiation. What color of visible light corresponds to this wavelength? What is the energy (in J) p..
The activation energy for a particular reaction is 95 kJ/mol. By what factor will the rate constant increase when the temperature is increased from 50 oC to 62 oC?
In S8 + 12O2-> 8SO3, if 10 grams of sulfur is used, how many grams of sulfur trioxide are produced?
Identify and discuss three key features associated with the combustion of polymeric materials or compounds that are relevant to the safety
Potassium hydrohen phthalate, KHC8H4O4, functions as monoprotic acid. If a 1.46 g sample of impure KHC8H4O4 requires 34.3 ml of 0.145 M NaOH
Which is the best solvent for recrystallizing acetanilide, water or dichloromethane (CH2Cl2). Explain your answer to receive lifesaver rating.
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