There are two ways to quantify a substance: One is by mass (which is a measure of the inertia of a substance) and the mole (which is the physical count of units e.g. atoms). In Chemistry, we use the Law of Definite proportions and that is based on...
How to determine the limit of detection? «on:September 25, 2017, 03:05:31 PM » Hello. I am developing an HPLC method for the quantitation of a substance at a particular wavelength. I had no idea as to the limit of detection, as this is a new product, so I ran 5 calibration...
If a substance has a mass of 50 grams and a volume of 80 mL, what is its density? Calculate the mass of a 0.253-mL sample of a liquid with a density of 0.789 g/mL. How do you find the density of mercury? 1) How many samples of the unknown liquid will be used to determine it...
How to determine either one or both of the presence and concentration of related substances in the fluidI is introduced into the fluid sample magnetic particles coated with an antibody that is specific for the substance concerned. With stirring the fluid, over time, it becomes bound to the ...
It can be challenging to determine the price of goodwill because it is composed ofsubjective values. Transactions involving goodwill may have a substantial amount of risk that the acquiring company could overvalue the goodwill in the acquisition—and, ultimately, pay too much for the entity being...
Unknowns fall into a number of broad classes such as volatiles, non-volatile and semi-volatile components. Also, extracted components can be organic, such as additives and monomers, or inorganic, such as metals or salts. Generally, the following analytical techniques are used to determine the di...
How to Calculate the Specific Heat of a Substance Step 1:Determine the mass of the sample, the amount of heat energy added to the sample, and the temperature increase of the sample. Step 2:Use the formula to calculate the specific heat of the substance. ...
Substance abuse is a major public health issue, affecting numerous bodily systems, including the eyes. While the detrimental effects of drug and alcohol abuse on the brain, liver, heart, and lungs are well-known, the damage these substances cause to vision and overall eye health is often overl...
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You may need the help of a registered dietitian or healthcare professional to determine "b." But, in general, use the low end of the range (0.8g per kg) if you are in good health and are sedentary. Use a higher number (between 1.2g and 2.0g per kg) if you are under stress, pr...