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Thiamine hydrochloride (C12H18ON4SCl2)is a water soluble form of thiamine (vitamin B1; Ka=3.37 X 10^-7).How many grams of the hydrochloride must be dissolved in 10.00 mLof water to give a pH of 3.20?
The "air bags" in automobiles contain sodium azide, NaN3, which decomposes when activated by an electronic igniter to produce nitrogen gas that fills the bag.
What is the buffer component ratio, ([CH3CH2COO-]/[CH3CH2COOH]) of a propanoate buffer that has a pH of 4.49. Ka of CH3CH2COOH is 1.3 x 10-5.
Calculate the percent ionization of formic acid (HCO2H) in a solution that is 0.311 M in formic acid and 0.189 M in sodium formate (NaHCO2). The Ka of formic acid is 1.77 × 10-4.
Using appendix C, calculate the delta S values for the following reactions. In each case explain the sign of delta S.
when lead metal pb is added to a 0.300 m solution of cr3 at room temperature an oxidationreduction equilibrium is
how do you solve this question? an ice cube has the dimensions of 5.80centimeters by 5.80 centimeters by 5.80
Construct the appropriate calibration curve as described in this lab and determine the %(W/W) of fluoride in the original toothpaste sample:
You collected a tissue specimen that you would like to preserve by freeze drying. To ensure the integrity of the specimen, the temperature should not exceed -10.5C. The vapor pressure of ice at 273.16K is 611 Pa
What is the mass of sugar in 735g of a 19.85% sugar solution?
what is the pH of the resulting solution after the nuetralization reaction (that is after the required amount of NaOH is added to the lactic acid)? Use a Ka of .00014 for lactic acid and assume that the solid was dissolved in 15.0 mL of distilled ..
The carbonyl carbon of an aldehyde, ketone, carboxylic acid, or ester cannot be a stereocenter. Why or why not
When doing the kinetic trial, Peyton mistakenly omitted the starch solution from the kinetic trials. How will this omission change the appearance of the resultant solution (from mixing solutions A&B)
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