Assume, that you digested 500 mg of the soil in acid, and the final volume of your sample is 25 ml. The solution was measured on ICP-AES and 0.5 mg/L Cu was found. How much Cu the soil contains?
25000 micro liter / 500 mg (or 25 ml / 0.5 g) = 50. This is your dilution factor. Multiply your measured result by this factor
0.5 mg/L Cu * 50 = 25 mg Cu per 1 kg of the soil.
Of course, if you diluted your digested sample during the measurement, this dilution factor also must be taken into account.
NaOH is added to p-nitrophenol to change it into p-nitropenyl, which can give the maximum Absorption.
Ist step, calculate pOH value by using formula pH + pOH = 14 2nd step, pOH = -log[OH], [OH] = - Antilog of pOH
A Landmark experiment using the scientific method is... Research it for yourself!!!!
The solvent is the liquid you will be using if you are dissolving something in the experiment.
You can convert pH to Percent dissociated easily using the Ka value. You can calculate the [H+] from the pH value, the [A-] from stoichiometry, and the [HA] from all of the above. It is easy to find the percent dissociation from here.
delta n /c
Multiply 10.13 by 0.035
NaOH is added to p-nitrophenol to change it into p-nitropenyl, which can give the maximum Absorption.
experiment.
Ist step, calculate pOH value by using formula pH + pOH = 14 2nd step, pOH = -log[OH], [OH] = - Antilog of pOH
i hate experiment
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A Landmark experiment using the scientific method is... Research it for yourself!!!!
You can convert pH to Percent dissociated easily using the Ka value. You can calculate the [H+] from the pH value, the [A-] from stoichiometry, and the [HA] from all of the above. It is easy to find the percent dissociation from here.
Make a sentence using hypothesis, controlled experiment and variable. Make a sentence using hypothesis, controlled experiment and variable.
The density of a cell suspension is expressed as absorbance (A) rather than percent T, since A is directly proportional to the concentration of suspended cells, whereas percent T is inversely proportional to the concentration of suspended cells. Therefore, as the turbidity of a culture increases, the A increases and percent T decreases, indicating growth of the cell population in the culture.