Why is it important to perform each titration multiple times
When titrating a standardized solution such as NaOH, why is it important to perform each titration multiple times (think about why it's important to continue titration past the equivalence point.
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The recommended daily dietary intake of calcium for adult men and pre-menopausal women is 1100 mg/day Calcium citrate , Ca3(C6H5O7)2 What mass of calcium citrate would be needed to provide the recommended daily intake of calcium?
A sheet of 0.001" thick BCC iron foil separates a high hydrogen content gas from a low hydrogen content gas at 725 degree C. Determine the concentration gradient of hydrogen and the flux of the hydrogen through the foil.
Let X be normally distributed random variable with mean u and variance s2= 4.84. Determine the the size of the sample required to be 90% confident that the error in the estimation is of u is at most 0.4.
After 48 hours, the concentration of carbon 3.5 mm below the surface of the metal is 0.3 wt% C. At what temperature was the furnace operating?
Determine the concentration of hemoglobin solution knowing that its absorbance is 0.65. The pathlength is 1 cm and the extinction coefficient is 3.9 x 105 M-1cm-1.
A certain brand of phone is supposed to weight 25 grams. We assume that the phone weight follow a normal distribution with the standard deviation off s=3 grams.We buy 4 such phones and compute the mean weight in order to test H0 : u 25 g vs H1: u&
Using the Kelvin - Planck statement of the second law of thermodynamics, demostrate the following corollaries all reversible refrigeration cycles operating between the same two reserviors have the same coefficient of performance.
Block 1 of mass 130 kg rests on a table and is connected by a light cord to Block 2. Given that the angle theta = 30.0 ° and that the coefficient of static friction between Block 1 and the table is µs = 0.540, what is the maximum mass th
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