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Explain why water has a high boiling point. B) Explain why polar substances like methanol, CH3OH, dissolve in water
When 5.6 grams of NaCl are dissolved in enough water to create a 125-gram solution, what is the solution's concentration, expressed as a percent by mass?
For given Land Vt. what is the impact of reducing Wdep on 1ds.1t and gate? Discussion: Overall. smaller Wdep is desirable because it is more important to be able to suppress Vtroll-off so that L can be scaled .
determine the volume of .450m napo4 is needed to precipitate all the leadii ions from 190.0ml of .550m leadii
Problem- The accepted value for the density of a certain liquid is 1.09 g/mL. A student obtains an average density of 1.12 g/mL. What is the relative percent error in the student's value? Do not comprise the percent sign in your answer. Express yo..
Calculate the pH of the solute in an aqueous solution of 0.372 M (CH3)3N(aq) if the Kb is 6.5 Ã- 10âˆ'5.
What information beyond the mole ratio is needed to convert from moles of reactant to grams of product?
After equilibrium is established, the flask is found to contain 1.13 x 10-3 mol of Cl2. Calculate the value of the equilibrium constant, Kc, for the reaction at this temperature.
Naturally occuring iodine has an atomic mass of 126.9045. A 12.3849 gram sample of naturally occurring iodine is acidentally contaminated with an additional 1.00070 grams of 129I, a synthetic radioisotope of iodine used in the treatment of certain..
What does calcium carbonate (limestone) dissolve in?
Use the standard normal distribution in Table B.1 to determine the rain depth that would have a recurrence interval of 100 years. Use the same table to estimate the recurrence interval of the 1988 annual rain of 99 inches.
Give a stepwise mechanism showing the base-induced formation of diphenyl-acetylene from meso-stilbene dibromide. Use curved arrows to symbolize the flow of electrons.
the common eastern mole a mammal typically has a mass of 69 g which corresponds to about 6.9 moles of atoms. a mole of
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