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How old is a mammoths tusk if there is only 25 percent C 14 remaining in the sample Half life of C 14 is 5700 years approximately?
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∙ 14y ago
11,400
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∙ 14y ago
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∙ 13y ago11,400 :)
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How to find degree of sulphonation in turkey red oil?
calculate the amount of NaOH required in neutralising the sulphonated mass. calculate the remaining sulphuric acid stoichiometrically. from that you get percent sulphonations. or take sample and carry out titration
What maximum percent strength of a sample of oleum is possible?
122.5%
A sample of 0.53 grams of an ore contains 5.4 percent silver How many milligrams of pure silver are in the sample?
Approx 28.6 grams.
How old is a sample of wood with 75 percent of 14 Carbon how old is the sample t125730 years?
t is equal to = (1/2)ln(A/A0))
How do you find the percent of something in a sample?
it is a simple task (something/total of sample)*100 ex: to find % of your marks obtained 589/600*100= 98.16666=98%
When you draw a sample from a normal distribution what can you conclude about the sample distribution?
The answer depends on how the sample is selected. If it is a simple random sample, of size n, then it is distributed approximately normally with the same mean as the population mean.The answer depends on how the sample is selected. If it is a simple random sample, of size n, then it is distributed approximately normally with the same mean as the population mean.The answer depends on how the sample is selected. If it is a simple random sample, of size n, then it is distributed approximately normally with the same mean as the population mean.The answer depends on how the sample is selected. If it is a simple random sample, of size n, then it is distributed approximately normally with the same mean as the population mean.
What is the mass of K 42 remaining in a 16g sample of 37.2hrs?
2.09
How much of an 80-milligram sample of Iodine-131 would be left after 32 days?
Iodine 131 is radioactive and has a half life of about 8 days. After 32 days there would be approximately 5 milligrams remaining
What is the percent of oxygen by mass in a pure sample of FeCr2O4?
the answer is 29 percent
What is the total mass of 222Rn remaining in an original 160-milligram sample of 222Rn after 19.1 days?
5.0 mg is the total mass of 222Rn remaining in an original 160-milligram sample of 222Rn after 19.1 days.
How to find degree of sulphonation in turkey red oil?
calculate the amount of NaOH required in neutralising the sulphonated mass. calculate the remaining sulphuric acid stoichiometrically. from that you get percent sulphonations. or take sample and carry out titration
If 3.0 grams of strontium-90 in a rock sample remained in 1989 approximately how many grams of strontium-90 were present in the original rock example in 1933?
From the fact that Strontium-90 has a half-life of approximately 28 years, the amount remaining in 1933 would be 3.0 x 2^2 = 12.0 g.
What s coefficient of curvature in soil mechanics?
Cc = (D30)^2 / (D10 * D60) Where: * D60 is the particle-size diameter for which 60 percent of the sample was finer, and, * D30 is the particle-size diameter for which 30 percent of the sample was finer. * D10 is the particle-size diameter for which 10 percent of the sample was finer.
How long will marijuana stay in hair sample?
approximately 3 months
What is a 10 percent sample of 250 people?
25 people
What maximum percent strength of a sample of oleum is possible?
122.5%
When the sample size and sample standard deviation remain the same a 99 percent confidence interval for a population mean will be narrower than the 95 percent confidence interval for the mean?
Never!
