The epidemiology of the spread of disease

Assignment Help Chemistry

Reference no: EM13846609

The epidemiology of the spread of disease through bodily fluids can easily be demonstrated using small cups of water given to several people, one of whose contains the base sodium hydroxide (NaOH) which appears no different than water itself. To simulate interaction of bodily fluids, each person exchanges the liquid in their cup with three other individuals. After the exchange, the indicator phenolthalein is added to each person's cup and the appearance of bright pink indicates that the fluid in their cup was exchanged with the "diseased" fluid containing sodium hydroxide. To complete the demonstration, hydrochloric acid is added to the bright pink cups to simulate "a cure" until the liquid turns clear again.

Explain what chemical reactions occurred, what was the indicator detecting, and why did the color go away after the addition of hydrochloric acid. How does this demonstration relate to the titration performed in the lab?

Reference no: EM13846609

Questions Cloud

What is pauls tax on his 2015 dividend income : What is her gross income and deductions from the annuity contract in the year of her death if she dies after receiving 254 payments and died on May 31st of that tax year?

How to convert from 3.56 moles of ch3oh : How to convert from 3.56 moles of CH3OH to the number of moles of O2 required?

Mixture of 3 proteins : You have a mixture of 3 proteins, listed in the table below with their relevant properties. You areinterested in isolating aspartate transaminase using ion exchange chromatography with DEAE resin. Giventhe values in the table below

Carbonic acid (h2co3) solution : Carbonic acid (H2CO3) solution, calcium hydroxide Ca(OH)2 solution, and a mixture of both were placed in three plastic cups. Explain which would be the most and least dangerous when brought into contact with the skin and why.

The epidemiology of the spread of disease : The epidemiology of the spread of disease through bodily fluids can easily be demonstrated using small cups of water given to several people, one of whose contains the base sodium hydroxide (NaOH) which appears no different than water itself. To simu..

What is the average number of customers in the barber shop : Assume customers arrive at the rate of 10 per hour and stay an average of 0.5 hour what is the average number of customers in the barber shop?

Calculate the degrees of unsaturation : The question asked me to: "Calculate the degrees of unsaturation for a compound with the molecular formula: C13H10O, Knowing this piece of information, what other possible functional group could this compound contain? I found the degrees of unsaturat..

If the base buret were not rinsed with naoh : 1. If the base buret were not rinsed with NaOH prior to filling, would the calculated normality of the base be TOO HIGH, TOO LOW, OR UNAFFECTED? WHY?

What are the defining characteristics of a minority group : Write a one-paragraph short essay (minimum six or seven sentences), in which you answer one of the following questions: What are the defining characteristics of a minority group

User Account

All Pages