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Because the sample may absorb moisture present in the air - leading to a false reading.

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How do you Measuring Morphological Rates?

Continuous sample = Slope of curve of change


When drawing blood from a central line how many mL of blood should be discarded before blood specimen is taken?

Usually, a discard volume of 5-10 mL of blood is recommended before collecting a sample from a central line to ensure that the sample is not contaminated with residual fluids or medications in the line. This helps ensure accurate test results.


What tool would you use to most accurately measure the volume of a water sample from a river?

A graduated cylinder would be the most accurate tool for measuring the volume of a water sample from a river. This tool allows for precise measurements of liquid volumes by reading the markings on the cylinder and is commonly used in laboratories for this purpose.


Do you have to empty the boric acid from a urine sample bottle before you use it?

No, you do not need to empty the boric acid from a urine sample bottle before use. The boric acid acts as a preservative to keep the sample stable until it can be tested.


Why would it not be correct to blank the spectrophotometer with deionized water?

It would not be correct to blank the spectrophotometer with deionized water because deionized water does not contain any solutes that would contribute to the absorbance reading. The purpose of blanking the spectrophotometer is to zero the instrument by measuring the absorbance of a solution that only contains the solvent used in the sample. Using deionized water would not effectively remove any background interference from the sample, leading to inaccurate results. It is recommended to use a blank solution that closely matches the solvent and conditions of the sample being measured.

Related Questions

If you were able to measure the motion of all of the particles of a sample and you used this data to find he average you would actually be measuring?

You would be measuring the sample's temperature. Temperature is related to the average kinetic energy of the particles in a sample. By measuring the motion of all particles and calculating the average, you are essentially determining the average kinetic energy and thus the temperature of the sample.


Can I drink water before taking the 23andMe test?

Yes, you can drink water before taking the 23andMe test. It is recommended to stay hydrated before providing a saliva sample for the test.


How to perform bomb calorimetry for measuring energy content in a sample?

To perform bomb calorimetry for measuring energy content in a sample, first place the sample in a sealed container called a bomb calorimeter. Ignite the sample to burn it completely, releasing heat. Measure the temperature change in the calorimeter to calculate the energy content of the sample.


How do you Measuring Morphological Rates?

Continuous sample = Slope of curve of change


A sample of a rating scale in measuring attitudees towards mathematics?

example or rating scale in measuring attitude towards mathematics


If you were able to measure the motion of all particles of a sample and you use data to find the average you would actually be measuring?

The average velocity of the particles in the sample. By measuring the motion of each particle and calculating the average, you can determine the typical speed and direction of motion for the particles in the sample.


What is the recommended SDS sample buffer recipe for protein sample preparation?

The recommended SDS sample buffer recipe for protein sample preparation typically includes Tris-HCl, SDS, glycerol, and -mercaptoethanol. This buffer helps denature proteins and provide a uniform charge for electrophoresis.


How can we accurately determine the protein concentration in a sample using measuring protein concentration techniques?

To accurately determine protein concentration in a sample, techniques such as spectrophotometry, Bradford assay, and BCA assay can be used. These methods involve measuring the absorbance of light by the sample and comparing it to a standard curve to calculate the protein concentration.


What is the correct unit for measuring the volume of a sample of blood?

you use centimeters to measure blood.


What two types of the zinc sample is she measuring?

You need to be specific we cant read your mind


How do you calculate grammes per square meter?

This is done by measuring a sample of the item and weighing it. It is easiest if the sample measures 1 square metre, or an exact multiple of it.


How can mass spectroscopy help in identifying the composition of a sample?

Mass spectroscopy can help identify the composition of a sample by measuring the mass-to-charge ratio of ions produced from the sample. This information can reveal the molecular structure and elements present in the sample, aiding in its identification.