30. Solving a chemistry problem

30. Solving a chemistry problem

Reviews 0
0 000 X
There are no such quantities in stock
By clicking the button, you agree to terms for buyers
Secure deal
Instant delivery

Product description

2. A sample of sodium chloride brand "chemically pure" was analyzed by various methods for the content of impurities of sulfates, phosphates, bromides and found in five parallel determinations. %: impurities of sulfate ions: 0.0004; 0.0005; 0.0006; 0.0007; 0.0008; phosphate ion impurities: 0.0008; 0.0009; 0.0010; 0.0012; 0.0014; bromide ion impurities: 0.0010; 0.0010; 0.0020; 0.0030; 0.0040. Calculate the confidence interval for the average content of these impurities at a confidence level P = 0.95. Answer: the confidence interval for the average content of sulfate ions is (0.0006 ± 0.0002)%, for phosphate ions - (0.0011 ± 0.0003)%, for bromide ions - (0.0020 ± 0.0016) %.

Main features

  • Content type File
  • Content description 64,52 kB
  • Added to the site 13.04.2023
If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.

Reviews

No reviews yet

0 000 X
There are no such quantities in stock
By clicking the button, you agree to terms for buyers
30. Solving a chemistry problem
0 000 X
Secure deal
Instant delivery

You viewed