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Methods of analytical chemistry are applicable.
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∙ 7y ago
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Why should you not return unused solutions or solids to the stock bottles?
The solutions or solids have already touched other surfaces or objects causing them to be contaminated and more bacteria/ or other living cell forms to be put into the substance that were not there to begin with.
What is more dense a 200g sample zinc metal or 500g?
Which is more dense a 200.g of zinc metal or a 500g sample of zine metal?
What criterion is used for the purity of a sample of caffeine?
The closer the melting point of the sample of the caffeine you have extracted, to the known melting point of pure caffeine, the more pure your sample is.
Grams of Cu in a 100 g sample of unknown?
your question is incomplete or incorrectly worded You want to know how much copper is in 100 grams of an unknown sample. The unknown could be made of anything, it may not even contain copper. You should include more information in your question
What is external standard method for chromatographic technique and how to perform it?
In external standard method we run a standard for the substance we are looking for in our sample and than run our sample in the same conditions. we will obtain peaks for the sample and standards and can correlate the sample with the standards and can determine the concentration of the same in our sample. for more details contact vani2007
Is The standard deviation of all possible sample proportions increases as the sample size increases?
The standard deviation would generally decrease because the large the sample size is, the more we know about the population, so we can be more exact in our measurements.
Is there any way to test your blood sugar other than taking a blood sample?
Yes, you can test your blood sugar through a urine sample. The sample is checked with a colored dipstick that measures the presence of glucose in the urine. The blood sugar test with the blood sample is more accurate and more conventional.
What if a potassium chlorate sample is contaminated with KCL would the experimental percent oxygen be higher or lower than the theoretical percent oxygen?
the experimental % oxygen would be lower because there would be more KCL in the simple than oxygen
How do you find whether given sample is DNA or RNA?
A spectrophotometer can be used to know if a sample is DNA or RNA. DNA has an absorbance maximaat 260nm, whereas RNA has an absorbance maxima at 280nm. By looking at which one of these two wavelengths the sample is more excited, one can determine if the sample is DNA or RNA.
What is difference between polluted water and contaminated water?
polluted water is more dangerous for use and contaminated water is poisiones then polluted
Why are random samples more representative of the population than other kinds of samples?
A 'random' sample - covers all age groups, genders, and other criteria. A 'targeted' sample might only cover a small part of the population.
Why did the Egyptians drink beer more than water?
The beer was safer to drink, because plain water was often contaminated with bacteria and other impurities.
Why did Egyptians drink beer more than water?
The beer was safer to drink, because plain water was often contaminated with bacteria and other impurities.
Can a bring a urine sample that is from the kitty litter to the vet?
I depends on the doctor. I assume that the vet might want to take a urine sample of the kitten; after all, medical professionals are more "accurate" with these things, if you know that I mean.
How many boxes must the processor sample to be 95 percent confident that the sample mean does not differ from the population mean by more than 0.2 pounds?
In order to answer the question it is necessary to know the population standard error.
The best way to keep your hands from being contaminated is to use the?
The best way to keep your hands from being contaminated is to use the?Read more: The_best_way_to_keep_your_hands_from_being_contaminated_is_to_use_the
What is a sample correlation?
If measurements are taken for two (or more) variable for a sample , then the correlation between the variables are the sample correlation. If the sample is representative then the sample correlation will be a good estimate of the true population correlation.
