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Why is it not recommended to leave an oven-dried sample in the open air for a long time before measuring its dry weight?
Wiki User
∙ 11y ago
Because the sample may absorb moisture present in the air - leading to a false reading.
Wiki User
∙ 11y ago
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How do you Measuring Morphological Rates?
Continuous sample = Slope of curve of change
What tool would you use to most accurately measure the volume of a water sample from a river?
A measuring cup
What is the measuring of the ratio of unstable and stable atoms in a rock sample to determine the age of the fossil it contains?
Radiometric dating.
Why the NaOH solution is heated before adding BaCl2 in the two solutions method for determination of purity of NaOH sample?
Why the NaOH is heated before adding in BaCl2 for determination of purity of NaOH sample?
What happens in a spectrophotometer?
Light is filtered to remove all but one specific wavelength, this wavelength is then passed through the sample. A sensor on the other side of the sample measures the intensity of the light that was not absorbed which is compared to the initial intensity of the light. This is an indirect approach to measuring the absorbance 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
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 does one prepare for a creatinine test?
The creatinine test requires a blood sample. It is recommended that the patient be fasting (nothing to eat or drink) for at least eight hours before the test.
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.
What are two possible sources of error when measuring a sample's mass and volume?
Calibration error (the equipment gives the incorrect result) and false assumptions (the sample is uniform and solid).
What tool would you use to most accurately measure the volume of a water sample from a river?
A measuring cup
What is the measuring of the ratio of unstable and stable atoms in a rock sample to determine the age of the fossil it contains?
Radiometric dating.
Why is it recommended to pour some of the solution from the sample bottle into a separate beaker before measurements are taken?
Most likely to avoid contamination, though it's hard for us to do your homework for you when you don't give complete information.
What is the use of measuring the activity of a radioactive isotope in a sample to determine its age?
radioactive dating
What are three techniques to analyze a fecal sample?
always measuring karrots keep in a secure area, and keep texture moist
