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The concentration of a substance can be determined alkalimetrically by titrating it with a known concentration of a base (alkali) until the equivalence point is reached. The volume of the base required to reach the equivalence point is used to calculate the concentration of the substance.
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How can the calibration curve of absorbance versus concentration be used to determine the concentration of a substance in a sample?
The calibration curve of absorbance versus concentration can be used to determine the concentration of a substance in a sample by measuring the absorbance of the sample and comparing it to the absorbance values on the calibration curve. By finding the corresponding concentration value on the curve, the concentration of the substance in the sample can be determined accurately.
How can one utilize a calibration curve to determine the concentration of a substance?
To determine the concentration of a substance using a calibration curve, one must first create the curve by measuring known concentrations of the substance and their corresponding signals. Then, by measuring the signal of an unknown sample and comparing it to the curve, the concentration of the substance can be determined.
What is the difference between millimoles and millimolar?
Millimoles is a unit of measurement for the amount of substance, while millimolar is a unit of concentration expressing the concentration of a solution in terms of millimoles per liter. In other words, millimoles measures the quantity of a substance, whereas millimolar measures the concentration of a substance in a solution.
What is the pH of a substance?
The pH is the negative log of the concentration of hydronium ions. (pH=-log [H3O+]) If the pH is high, the substance is basic. If it is low the substance is acidic. When the pH is exactly 7 the substance is neutral.
What is titrand?
A titrand is the substance being analyzed or measured in a titration experiment. It is the compound whose concentration is being determined by reacting it with a known concentration of another substance.
How can the calibration curve of absorbance versus concentration be used to determine the concentration of a substance in a sample?
The calibration curve of absorbance versus concentration can be used to determine the concentration of a substance in a sample by measuring the absorbance of the sample and comparing it to the absorbance values on the calibration curve. By finding the corresponding concentration value on the curve, the concentration of the substance in the sample can be determined accurately.
How can one utilize a calibration curve to determine the concentration of a substance?
To determine the concentration of a substance using a calibration curve, one must first create the curve by measuring known concentrations of the substance and their corresponding signals. Then, by measuring the signal of an unknown sample and comparing it to the curve, the concentration of the substance can be determined.
How does a polarimeter work?
A polarimeter works by measuring the rotation of plane-polarized light as it passes through an optically active substance. The amount of rotation is proportional to the concentration and specific rotation of the substance in the sample. By comparing the amount of rotation with a standard, the concentration and purity of the substance can be determined.
How can you determine Biomagnification factor?
Biomagnification factor can be determined by calculating the ratio of the concentration of a particular substance in an organism at a higher trophic level to the concentration of that substance in its food source at a lower trophic level. This provides insight into how the substance accumulates and increases in concentration as it moves up the food chain.
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
Is the amount of a substance in a given volume the concentration of the substance?
Ye.. the concentration of a substance is measured as the amount of substance per unit volume. Accordingly, the amount of a substance in per unit volume is the concentration of the substance.
What is the difference between millimoles and millimolar?
Millimoles is a unit of measurement for the amount of substance, while millimolar is a unit of concentration expressing the concentration of a solution in terms of millimoles per liter. In other words, millimoles measures the quantity of a substance, whereas millimolar measures the concentration of a substance in a solution.
What is the pH of a substance?
The pH is the negative log of the concentration of hydronium ions. (pH=-log [H3O+]) If the pH is high, the substance is basic. If it is low the substance is acidic. When the pH is exactly 7 the substance is neutral.
What is titrand?
A titrand is the substance being analyzed or measured in a titration experiment. It is the compound whose concentration is being determined by reacting it with a known concentration of another substance.
What is the fundamental principle of polarimeter?
The fundamental principle of a polarimeter is based on the rotation of plane-polarized light as it passes through an optically active substance. By measuring the angle of rotation, the concentration or purity of the substance can be determined.
How is the concentration of a solution determined?
The concentration of a solution can be determined by measuring the amount of solute (substance being dissolved) in a given volume of solvent (dissolving medium). This can be done using various methods such as volumetric analysis, spectrophotometry, or by using concentration units like molarity (moles of solute per liter of solution).
What is molarity a measurment of?
The concentration of a substance dissolved in a liquid.
