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LD50 ('50%-Lethality' dose) is a meaured value from many statical investigations. So there's only a good definition on how it should be 'measured' and can not be calculated from other values by formula.

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Why is LD50 data so useful in dealing with human health and environmental toxins?

LD50 data is useful because it provides a standardized measure of toxicity that allows for comparisons between different substances. It helps determine the potential harm a substance may cause and aids in setting safety regulations and guidelines for exposure levels. Additionally, LD50 data can be used to assess the risk of acute poisoning and to guide medical treatment in cases of exposure to toxins.


What is the name of the substance with the chemical formula kno3 that is a component of gun powder?

The substance with the chemical formula KNO3 is called potassium nitrate. It is used as an oxidizing agent in gunpowder.


What is the LD50 of sarin?

In toxicology, the median lethal dose, of a toxin is the dose required to kill half the members of a tested population after a specified test duration. LD50 figures are frequently used as a general indicator of a substance's acute toxicity.


What is the name of a substance with the formula PBr3?

The substance with the formula PBr3 is called phosphorus tribromide. It is a yellowish liquid that is used in organic synthesis as a brominating agent.


What is the rate of disappearance formula used to calculate the speed at which a substance is consumed or transformed in a chemical reaction?

The rate of disappearance formula is used to calculate the speed at which a substance is consumed or transformed in a chemical reaction. It is typically expressed as the change in concentration of the reactant over time.

Related Questions

What is a calculation used to estimate the answer to a problem before doing an actual calculation called?

A formula.


What is the heat calculation formula used to determine the amount of heat transferred in a system?

The formula used to calculate the amount of heat transferred in a system is Q mcT, where Q represents the heat transferred, m is the mass of the substance, c is the specific heat capacity of the substance, and T is the change in temperature.


How do you calculate distance in physics and what formula is used for this calculation?

Distance in physics is calculated by multiplying the speed of an object by the time it takes to travel that distance. The formula used for this calculation is: Distance Speed x Time.


What are three parts of a formula?

Three parts of a formula include the equal sign to start the equation, cell references or values used in the calculation, and mathematical operators (+, -, *, /) to perform the calculation.


How is mass divide by volume?

This formula is used in the calculation for density, Density=mass/volume,normally in the calculation of liquid volume or density.


How is mass divided by volume done?

This formula is used in the calculation for density, Density=mass/volume,normally in the calculation of liquid volume or density.


What is the concentration factor formula used to calculate the concentration of a substance in a solution?

The concentration factor formula used to calculate the concentration of a substance in a solution is: Concentration (Amount of Substance / Volume of Solution) Dilution Factor


What is mean by chemical?

formula used in chemistry and a substance used in or a chemical process


What is the force calculation formula used to determine the impact of external forces on a system?

The force calculation formula used to determine the impact of external forces on a system is Newton's second law of motion, which states that force equals mass times acceleration (F ma).


What is the formula used in diesel index calculation?

diesel index = aniline point *API(1/100)


What is the name given to built in calculations?

SUM is a function. It can be used as part of a formula which can carry out a calculation.


The oral ld50 value for cypermethrin is 247 mgkg compared to 5000 mgkg for hexaflumuron therefore what is the more toxic of these two pesticide?

Cypermethrin, assuming the LD50s for the two chemicals are for the same period of time. LD50 is the lethal concentration where half of the individuals die in a given time period. Higher numbers mean that is takes more of the chemical to kill organisms, whereas lower numbers mean it takes less of the chemical to kill organisms. LD50s depend on what animal was used in the experiment.