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Question- What is the concentration of protonated species for a typical amine (pKa=10) at pH 11 in a 0.01 M solution of the amine?
Thank you! My final is tomorrow along with I am in desperate need!
If a precision of 0.1% is required for the concentration of a solution that is 0.2M, how many significant figures must be reported
Compare mass, charge, and location of the subatomic particles in the atom. Particles are Proton, Nuetron, Electrons. What is the Mass,
a 75 ml solution of 0.030 m caoh2 is titrated with 0.035 m hcl. calculate the ph of the mixture after 60 ml of hcl have
Oxide of iron contains 72.36% iron by mass. What is the empirical formula for this compound
Problem- Calculate the molarity of a sodium hydroxide solution if a .5356g sample of KHP was dissolved in 50 ml of water and titrated with 20.78 ml sodium hydroxide to a phenolphthalein endpoint.
What volume of 3.00 M NaOH must you add to the acetic acid to achieve a buffer with a pH of 5.00 at a final volume of 500 mL? (Ignore activity coefficients.)
Explain if you were conducting a gas volumetric analysis, Explain how would your calculations to achieve the mass percent of the substance in change if the pneumatic trough contained mercury as opposed to water
On top of one of the peaks in Rocky Mountain National Park the pressure of the atmosphere is 500. torr. Determine the boiling point of water at this location. The heat of vaporization of water is 40.7 kJ/mol.
What is the half life of the decomposition of A at 60C? e)If the concentration of a is found to be 2.78 x 10^-3 mole/L at t= 1.80 s and 60C, what is the initial concentration of a at 60C?
If there's a mixture of O2 and N2, and the mol of N2 is 0.605 mol, and fraction (f) of O2 is 0.251; then, what is the mol of O2?
identify the incorrect names of formulas.
Find the volume in cubic centimeters of a box 25 mm x 12 cm x 0.20 m. How many grams of water should the box hold. The density of water is 1 g/mL and 1 cubic centimeter equals 1 mL.
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