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What pressure is needed to confine an ideal gas to 193.0 L after it has expanded from 11.0 L and 0.9 atm at constant temperature?
Consider the titration of 30.0 ml of 0.035 M NH3 with 0.025 M HCl. Calculate the pH after the following volumes of titrant have been added.
Explain how this system appears static but in fact is a dynamic equlibrium, Na+(aq) + Cl-(aq) --> NaCl(s), that is in constant motion though the mass of solid is constant.
What is the density of gold if a ring with a volume of 2.656 cubic centimeters has a mass of 51.26 grams?
What is the change in internal energy (in J) of a system that absorbs 0.241 kJ of heat from its surroundings
Calculate the molarity of a hydrofluoric acid, HF, solution if 50.0 ml of the solution is neutralized by 18.5 mL of 0.400 M NaOH.
Use the standard half-cell potentials listed below to calculate the standard cell potential for the following reaction occurring in an electrochemical cell at 25°C.
What velocity must an electron have in order to have a de Broglie wavelength of 1.00 A? What velocity must a proton have in order to have the same de Broglie wavelength
Hydration of alkynes (via oxymercuration) gives good yields of single compounds only with symmetrical or terminal alkynes. Draw the major organic product(s) formed
added 5 mL of 0.10 M H2SO4 instead of 5mL 0.10 M of HCl calculate the ph of the solution using henderson-hasselbalch
Which molecule is polar? Which of the following is not an ionic compound? Which of the following is not an ionic compound?
A beaker with 160 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 6.40 mL of a 0.400 it M HCl solution to the beaker. How much will the..
a 35.0-ml sample of 0.20 m lioh is titrated with 0.25 m hcl. what is the ph of the solution after 23.0 ml of hcl have
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