Homework Answers
3. The employee exposed to acetone and methyl ethyl ketone
According to the data,
the exposure would constitute and overexposure according to ACGIH guidelines.
The TWA limit is much closer and easily reached to the TLV value given for the two chemicals acetone and methyl ethyl ketone in the time frame of 8h/day work schedule for the employee. So it is definitely considered an overexposure.
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An employee is exposed to Acetone and Methyl Ethyl Ketone simultaneously. Both chemicals cause irritation of...
Need help, numbers 3-6 please show work. and fill out table of chemicals for all chemical...
Need help, numbers 3-6 please show work. and fill out table of
chemicals for all chemical used.
calculate mmol in the table as well show work please
and each of these must be listed in its own row. There are 10 column headings: IUPAC name OR common name, structure, CAS number (Chemical Abstract Service number) molecular mass, melting point (if applicable), boiling point (if applicable), solubility (in water, if applicable), density, amounts to be used in the experiment, and the...
QUESTIONS TO ANSWER: Prepare a table of all chemicals used with the structure and purpose of...
QUESTIONS TO ANSWER:
Prepare a table of all chemicals used with the structure and
purpose of each.
Calculate the theoretical yield by finding limiting reactant of
the experiment by converting reactants to product (remember to show
all calculations used)
Calculate the percent yield using the limiting reactant
Calculate the Rf for triphenylmethanol. If there are two dots,
determine which one is triphenylmethanol.. ( I did not provide
data. Please let me know how I Would do this if I did)...
Freezing Point Depression: Determination of the Molar Mass of an Unknown Substance Laboratory Record Unknown Identifier...
Freezing Point Depression: Determination of the Molar Mass of an Unknown Substance Laboratory Record Unknown Identifier #4 (All unknowns are nonelectrolytes, soi-1) Determination of the freezing point of pure l-butyl alcohol: (Record time-temperature data on the next page) 29.62 1. Mass of empty test tube 2. Mass of test tube and t-butyl alcohol after determination of freezing point of pure t-butyl alcohol 50.25 20.71 3. Mass of t-butyl alcohol Determination of the molar mass of an unknown: (Record time-temperature data...
explaim the mechanisms amd toxological effects if type 1 diabetes in this article Exposure to arsenic...
explaim the mechanisms amd toxological effects if type 1
diabetes in this article
Exposure to arsenic in drinking water is associated with increased prevalence of diabetes. We previously reported an association of diabetes and urinary concentration of dimethylarsinite (DMAS"), a toxic product of arsenic methylation by arsenic (+ 3 oxidation state) methyltransferase (AS3MT). Here we examine associations between AS3MT polymorphism, arsenic metabolism and diabetes. Fasting blood glucose, oral glucose tolerance and self-reported diagnoses were used to identify diabetic individuals. Inorganic...
2006, interest rates increased from 5% to 7%, when this happens consumers are A. less likely...
2006, interest rates increased from 5% to 7%, when this happens consumers are A. less likely to save, that is, sell a financial asset. B. more likely to save, that is, sell a financial asset. C. less likely to save, that is, purchase a financial asset. D. more likely to save, that is, purchase a financial asset. I. In 2. If commercial banks hold all their assets in the form of required reserves: A. only they will be able to...
Grignard reagent THE GRIGNARD REAGENT-PREPARATION AND REACTION In this experiment, you will prepa...
i need help with the postlab questions please
Grignard reagent THE GRIGNARD REAGENT-PREPARATION AND REACTION In this experiment, you will prepare a Grignard reagent, phenyl magnesium bromide, from bromobenzene and magnesium metal. The Grignard reagent will then react with methyl benzoate to form triphenylmethanol. Introduction Grignard reagents, such as organomagnesium halides, were discovered in 1910 by French chemist Victor Grignard. The Grignard reaction is one of the most general methods for carbon- carbon bond formation in all of organic chemistry....
QUESTION 3 The textbook discusses 3 types of environmental degradation affecting the environment. Below, please match...
QUESTION 3 The textbook discusses 3 types of environmental degradation affecting the environment. Below, please match each type of degradation discussed to the type of consequence suggested in the textbook. (Answer based on what the book says, not based on your personal opinion.) Air pollution A., is killinig humans 8,..isklin the earth Land poliution Water pollution address chiticar Watel Air Pollution Air pollution occurs when the release of materials to the atmosphere cannot be safelv disposed of by natural processes....
How can we assess whether a project is a success or a failure? This case presents...
How can we assess whether a project is a success or a
failure?
This case presents two phases of a large business transformation project involving the implementation of an ERP system with the aim of creating an integrated company. The case illustrates some of the challenges associated with integration. It also presents the obstacles facing companies that undertake projects involving large information technology projects. Bombardier and Its Environment Joseph-Armand Bombardier was 15 years old when he built his first snowmobile...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated...
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I have this case study to solve. i want to ask which type of case study...
I have this case study to solve. i want to ask which
type of case study in this like problem, evaluation or decision? if
its decision then what are the criterias and all?
Stardust Petroleum Sendirian Berhad: how to inculcate the pro-active safety culture? Farzana Quoquab, Nomahaza Mahadi, Taram Satiraksa Wan Abdullah and Jihad Mohammad Coming together is a beginning; keeping together is progress; working together is success. - Henry Ford The beginning Stardust was established in 2013 as a...
Need help, numbers 3-6 please show work. and fill out table of
chemicals for all chemical used.
calculate mmol in the table as well show work please
and each of these must be listed in its own row. There are 10 column headings: IUPAC name OR common name, structure, CAS number (Chemical Abstract Service number) molecular mass, melting point (if applicable), boiling point (if applicable), solubility (in water, if applicable), density, amounts to be used in the experiment, and the...
QUESTIONS TO ANSWER:
Prepare a table of all chemicals used with the structure and
purpose of each.
Calculate the theoretical yield by finding limiting reactant of
the experiment by converting reactants to product (remember to show
all calculations used)
Calculate the percent yield using the limiting reactant
Calculate the Rf for triphenylmethanol. If there are two dots,
determine which one is triphenylmethanol.. ( I did not provide
data. Please let me know how I Would do this if I did)...
Freezing Point Depression: Determination of the Molar Mass of an Unknown Substance Laboratory Record Unknown Identifier #4 (All unknowns are nonelectrolytes, soi-1) Determination of the freezing point of pure l-butyl alcohol: (Record time-temperature data on the next page) 29.62 1. Mass of empty test tube 2. Mass of test tube and t-butyl alcohol after determination of freezing point of pure t-butyl alcohol 50.25 20.71 3. Mass of t-butyl alcohol Determination of the molar mass of an unknown: (Record time-temperature data...
explaim the mechanisms amd toxological effects if type 1
diabetes in this article
Exposure to arsenic in drinking water is associated with increased prevalence of diabetes. We previously reported an association of diabetes and urinary concentration of dimethylarsinite (DMAS"), a toxic product of arsenic methylation by arsenic (+ 3 oxidation state) methyltransferase (AS3MT). Here we examine associations between AS3MT polymorphism, arsenic metabolism and diabetes. Fasting blood glucose, oral glucose tolerance and self-reported diagnoses were used to identify diabetic individuals. Inorganic...
2006, interest rates increased from 5% to 7%, when this happens consumers are A. less likely to save, that is, sell a financial asset. B. more likely to save, that is, sell a financial asset. C. less likely to save, that is, purchase a financial asset. D. more likely to save, that is, purchase a financial asset. I. In 2. If commercial banks hold all their assets in the form of required reserves: A. only they will be able to...
i need help with the postlab questions please
Grignard reagent THE GRIGNARD REAGENT-PREPARATION AND REACTION In this experiment, you will prepare a Grignard reagent, phenyl magnesium bromide, from bromobenzene and magnesium metal. The Grignard reagent will then react with methyl benzoate to form triphenylmethanol. Introduction Grignard reagents, such as organomagnesium halides, were discovered in 1910 by French chemist Victor Grignard. The Grignard reaction is one of the most general methods for carbon- carbon bond formation in all of organic chemistry....
QUESTION 3 The textbook discusses 3 types of environmental degradation affecting the environment. Below, please match each type of degradation discussed to the type of consequence suggested in the textbook. (Answer based on what the book says, not based on your personal opinion.) Air pollution A., is killinig humans 8,..isklin the earth Land poliution Water pollution address chiticar Watel Air Pollution Air pollution occurs when the release of materials to the atmosphere cannot be safelv disposed of by natural processes....
How can we assess whether a project is a success or a
failure?
This case presents two phases of a large business transformation project involving the implementation of an ERP system with the aim of creating an integrated company. The case illustrates some of the challenges associated with integration. It also presents the obstacles facing companies that undertake projects involving large information technology projects. Bombardier and Its Environment Joseph-Armand Bombardier was 15 years old when he built his first snowmobile...
I have this case study to solve. i want to ask which
type of case study in this like problem, evaluation or decision? if
its decision then what are the criterias and all?
Stardust Petroleum Sendirian Berhad: how to inculcate the pro-active safety culture? Farzana Quoquab, Nomahaza Mahadi, Taram Satiraksa Wan Abdullah and Jihad Mohammad Coming together is a beginning; keeping together is progress; working together is success. - Henry Ford The beginning Stardust was established in 2013 as a...
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