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0.55 g of hydrogen chloride (\rm HCl) is dissolved in water to make 3.0 L of solution. What is the \rm pH of the resulting hydrochloric acid solution?
What is the maximum number of electrons in an atom whose highest-energy electrons have the principal quantum number n=5
what is the concentration of glyceraldehyde-3-phosphate? Assume a temperature of 25.0 °C. The constant R = 8.3145 J/(mol·K)
the 1H NMR spectrum contains a triplet at 1.08 ppm (3H), a singlet at 2.5 ppm (3H), and a quartet at 2.45 ppm (2h). the magnitudes of the splitting of both the quartet and triplet are identical. deduce the structure of this compound and assign all..
describe the ph of a buffer solution consisting of 100 ml containing 0.1m ch3cooh and 0.125m ch3coo- both before and
the electron in the n=5 level of a hydrogen atom emits a photon with a wavelength of 1280 nm. To what energy level does the electron move?
Weight and volume measurements on a sample of pure cadmium showed its density to be 521 lb/ft3 is this a 3.5% error?
Use a molar mass of 800g/mol for the vegetable oil and use a density of 0.88g/mL for vegetable oil and 0.79 g/mL for methanol to calculate how many moles of ethanol are used.
the solubility of oxygen in water at 25 degree celsius and 1.00 atm pressure is 0.041g/L. what is the solubility of oxygen in water at 6 atm pressure?
Concetrated acedic acid is a Class II combustible liquid. What is the molecular weight of acetic acid that will form 2 moles of CO2 assuming complete combustion.
potassium hydrogen phthalate is a monoprotic acid. dihydrogen pthalate h2c8h4o4 is a diprotic acid. an analyte sample
Unlkie amines, amides are not ver strong bases. In fact, the nitrogens in amides are not even the most basic position - protonation occurs at the carbonyl oxygen. Provide three reasons why the oxygen in an amide is more basic than the nitrogen.
find the volume of feso4 solution.what volume of 0.200m feso4nbspsolution would be required to react with 20.0ml of
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