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How many moles of pure KHP are in a sample if it takes 15 mL of 0.1005 M NaOH to reach the endpoint of the titration?
What is the pH of a 0.15 M solution of the weak base ammonia (NH3). The Ka of the conjugate acid is (NH4) is 5.6e-10.
List the liquids in table 2 whose densities and boiling points most closely match those of the unknown liquid. List these liquids densities, boiling points, & solubilities.
How would I do that? I have a diagram for a trigonal bipyramidal crystal field and two values are on the diagram. There's a delta 0.19 and a delta 0.79.
the normal respiratory rate for a human being is 15 breaths per minute. the average volume of air for each breath is
Two propagation steps are given below. (a) Draw the intermediate compound in the Step 2 box. (Keep Br2.) (b) Draw the appropriate curved arrows - in the Step 1 and 2 boxes - to show the mechanism of each step. See the Hint for formatting procedure..
electromagnetic radiation has an energy of 926 j. the wavelength of this radiation is 856 nm. how many photons are
A sample of gaseous C2H2 (acetylene, or ethyne) was stored for one year, yet at the end of this period the sample remained unchanged and no graphite or hydrogen gas had been formed. Briefly explain why there is no inconsistency between the sign of..
2nd derivative (forwards) Gradient-vector, Hessian-vector products Forward-reverse mode Hessian How costly is obtaining Hessian information?
A 100. mL sample of 0.10 M HCl is mixed with 50. mL of 0.12 M NH3. What is the resulting pH?(kB FOR NH3= 1.8 x 10^-5)
Lethality of Carbon Monoxide, Sulfur Dioxide and TNT Air monitoring provides the following contaminant concentrations at the approximate center of a fire scene in which acres of automobile tires are burning:
what is the formula for the compound that crystallizes with a cubic closest packed array of sulfur ions and that contains zinc ions in 1/8 of the tetrahedral holes and aluminum in 1/2 of the octahedral holes
An impure sample of potassium hydrogen phthalate, KHP, having a mass of 111.07 g was dissolved in water. This acid sample was neutralized by the addition of 310.0 mL of 0.250 M NaOH
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