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Boron has two stable isotopes 10B (mass = 10.012938) and 11B (mass = 11.009305). If the atomic weight of Boron is 10.811 Explain what are the isotopic abundances of each isotope?
What observed rotation is expected when a 1.62 M solution of (R)-2-butanol is mixed with an equal volume of a 0.810 M solution of racemic 2-butanol, and the resulting solution is analyzed in a sample container that is 1 dm long
a 15.60-ml sample of potassium hydroxide solution is titrated tothe stoichiometric point with 18.00 ml of a 0.292 m
A reaction takes place inside a test tube is the test tube part of the system or part of the surroundings
Calculate the resulting pH if 365 mL of 2.88 M HNO3 is mixed with 335 mL of 1.10 M Ca(OH)2 solution.
Write a conversion factor that relates moles of HNO3
A column of water exerts, a pressure of 100pa and a force of 2.0 N. What is the cross sectional area of the column?
What pressure is needed to make the following changes. 130 mL of a dry gas at 740 torr to 150 mL.
A sample of air occupied 1.00L at 25 degrees C and 1.00 atm. Explain what pressure in atm is needed to compress it to 239 cm3 at this temperature
Calculate the potential of the following two half- cells that are connected by a salt bridge: a galvanic cell with two platinum electrodes, the one on the left immersed in a solution that is 0.0301 M in Fe3+ and 0.0760M in Fe2+
what is the concentration of the dye in a solution with a percent transmittance reading of 45.8% at 640 nm
How come the reaction of terminal alkynes and alkenes with KMNO4 would yield a carboxylic acid and carbon dioxide. Why woulndn't the reaction yield a carboxylic acid and formic acid
Consider the fermentation of one molecule of glucose (Glc) to two molecules of lactate (Lac): Glc 2 Lac. Which of the following sets of concentrations would result in the largest release of free energy at 30°C
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