The concentration of HCl is measured by titrating with different indicators. Whether the difference between the indicators 1 and 2 , indicators 2 and 3 are significant at the 95 % confidence level has to be given. Concept Introduction: Comparing replicate measurements: When the two standard deviations are not significantly different from each other, the equation used is: t test for comparison of means: t = | x 1 ¯ − x 2 ¯ | ( s pooled ) n 1 n 2 n 1 + n 2 ( since s pooled = s 1 2 ( n 1 − 1 ) + s 2 2 ( n 2 − 1 ) n 1 + n 2 − 2 ) When the standard deviations of two sets of measurements are significantly different, the equations used are: t calculated = | x 1 ¯ − x 2 ¯ | ( s 1 2 / n 1 + s 2 2 / n 2 ) Degrees of freedom = ( s 1 2 / n 1 + s 2 2 / n 2 ) 2 ( s 1 2 / n 1 ) 2 n 1 − 1 + ( s 2 2 / n 2 ) 2 n 2 − 1 = ( u 1 2 + u 2 2 ) 2 u 1 4 n 1 − 1 + u 2 4 n 2 − 1 To Give: Whether the difference between the indicators 1 and 2 , indicators 2 and 3 are significant at the 95 % confidence level

Question

3) The following molecule, chloral is a common precursor to chloral hydrate, an acetal type molecule that was a first-generation anesthetic. Draw a mechanism that accounts for tis formation and speculate why it does not require the use of an acid catalyst, like most hemiacetal and acetal reaction: (10 pts) H H₂O

Answer 1

Question

Chapter 4, Problem 4.20P

Interpretation Introduction

Interpretation:

The concentration of HCl is measured by titrating with different indicators.

Whether the difference between the indicators 1 and 2 , indicators 2 and 3 are significant at the 95% confidence level has to be given.

Concept Introduction:

Comparing replicate measurements:

When the two standard deviations are not significantly different from each other, the equation used is:

t test for comparison of means: t=|x1¯−x2¯|(spooled)n1n2n1+n2 (since spooled=s12(n1−1)+s22(n2−1)n1+n2−2)

When the standard deviations of two sets of measurements are significantly different, the equations used are:

tcalculated =|x1¯−x2¯|(s12/n1+s22/n2)Degrees of freedom =(s12/n1+s22/n2)2(s12/n1)2n1−1+(s22/n2)2n2−1 =(u12+u22)2u14n1−1+u24n2−1

To Give: Whether the difference between the indicators 1 and 2 , indicators 2 and 3 are significant at the 95% confidence level

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Students have asked these similar questions

3) The following molecule, chloral is a common precursor to chloral hydrate, an acetal type molecule that was a first-generation anesthetic. Draw a mechanism that accounts for tis formation and speculate why it does not require the use of an acid catalyst, like most hemiacetal and acetal reaction: (10 pts) H H₂O

You are a Quality Manager for a very well-known food ingredient company that produces umami powder, and you are responsible for setting specification limits. The net weight (in grams) of bags of unami powder is monitored by taking samples of six bags on an hourly basis during production. The label on every bag reports a contents of 1KG umami powder. The process mean is μ = 1012 g, and when the process is properly adjusted, it varies with σ = 11 g. QUESTION: Your organisation strives to ensure that >99.97% of bags of umami powder produced conforms to specification. What performance process index value is required to achieve this process yield? Calculate PPK using the following formula: Ppk = (USL – mean)/3 σ Ppk = (mean -LSL)/ 3 σ

You are a Quality Manager for a very well-known food ingredient company that produces umami powder, and you are responsible for setting specification limits. The net weight (in grams) of bags of unami powder is monitored by taking samples of six bags on an hourly basis during production. The label on every bag reports a contents of 1KG umami powder. The process mean is μ = 1012 g, and when the process is properly adjusted, it varies with σ = 11 g. QUESTION: Provide a valid and full justification as to whether you would advise your manager that the process is satisfactory when it is properly adjusted, or would you seek their approval to improve the process?