Answer the following: 1: a) . Breathalyzers determine the alcohol content in a person’s breath by...

Answer the following:

1: a) . Breathalyzers determine the alcohol content in a person’s breath by a redox reaction using dichromate ions (the unbalanced reaction is shown below). C2H5OH + Cr2O7 2− → CH3CO2H + Cr3+ a. Determine the number of electrons transferred in this redox reaction. b. Determine the concentration (in M) of Cr3+ in 50.0mL of solution at half the Canadian legal blood alcohol concentration limit (BAC, limit is 0.08 mg/mL).

b) The Keq for the reaction between strontium metal and titanium ions (shown below) is 4.0x1042. Calculate Eo for a strontium-titanium battery. Sr(s) + Ti2+(aq) ⇌ Sr2+(aq) + Ti(s)

Solutions

Expert Solution

queen_honey_blossom answered 10 months ago

Next > < Previous

Related Solutions

A breath analyzer is used by the police to estimate blood alcohol content (BAC) from a...

A breath analyzer is used by the police to estimate blood alcohol content (BAC) from a breath sample. If a person’s BAC is above (or equal to) the legal limit, they can be arrested for suspicion of driving while impaired from alcohol. However, the only way to accurately measure BAC level is through taking a blood sample; a number of factors are known to influence the results of breath analyzers, such as hypoglycemia. A particular brand of breath analyzer is...

2. The following data on distilled alcohol content (%) for a sample of 35 port wines...

2. The following data on distilled alcohol content (%) for a sample of 35 port wines was extracted from the article “A Method for the Estimation of Alcohol in Fortified Wines Using Hydrometer Baumé and Refractometer Brix” (Amer. J. Enol. Vitic., 2006: 486–490). Each value is an average of two duplicate measurements. 16.35 18.85 16.20 17.75 19.58 17.73 22.75 23.78 9.12 10.22 23.25 19.08 19.62 33.05 19.20 20.05 17.85 19.17 19.48 20.00 19.97 42.13 11.42 03.28 41.56 17.48 17.15 19.07...

A sample of wine was diluted 1:10 and analyzed for alcohol content. A calibration curve was...

A sample of wine was diluted 1:10 and analyzed for alcohol content. A calibration curve was created from a set of standard solutions producing a plot of absorbance vs. percent alcohol. The calibration curve had a slope of 8.07 x 10-2 with an intercept of 6.02 x 10-3. Keeping in mind that the wine sample was diluted by a factor of ten, what is the percent, by volume, of alcohol in your sample if the absorbance of your sample was...

Researchers are studying the impact of alcohol consumption on a person’s ability to perform a simple...

Researchers are studying the impact of alcohol consumption on a person’s ability to perform a simple task. Five subjects complete a small puzzle while sober, and then again after drinking three glasses of wine. The times (in seconds) are shown below, as well as some summary statistics: Subject Sober (S) After Wine (AW) 1 2 3 4 5 mean 169.2 198.6 std. dev. 55.9 72.5 109 132 248 155 202 141 128 290 174 260 Di↵.(d=SAW) 32 4 42 19...

Beer and Blood Alcohol Content The relationship between number of beers consumed (x) and blood alcohol...

Beer and Blood Alcohol Content The relationship between number of beers consumed (x) and blood alcohol content ( y) was studied in 25 male college students by using simple linear regression. The estimated blood alcohol content ( ŷ ) is given in the following regression equation: ŷ = -0.0127 + 0.0180x Suppose that the legal blood alcohol content limit for driving is 0.05. If John consumed 4 beers the model would predict that he would be: Select one: a. 0.0027...

In 500 words or more, answer the following 1. Consumer Created Content a. What is the...

In 500 words or more, answer the following 1. Consumer Created Content a. What is the difference between advertising on social media and marketing using social media? What are the benefits to each, and what are the challenges? b. Pretend (for any company make one up) – You are launching your new blog on your recently updated website. Here’s your big chance to speak directly to your customers and hopefully start the dialogs that get picked up by search engine...

Write a educational commercial on one of the following content areas below: Fetal Alcohol Syndrome Dangers...

Write a educational commercial on one of the following content areas below: Fetal Alcohol Syndrome Dangers of smoking during pregnancy Dangers of using E-cigarettes/products Dangers of one of the drugs discussed in Workshop four chapter readings.

Answer the following with regards to the preparation of a haloalkane from an alcohol: In the...

Answer the following with regards to the preparation of a haloalkane from an alcohol: In the experiment performed, the reaction was of tert-butyl alcohol with concentrated hydrochloric acid resulted to tert-butyl chloride and water as a by-product was observed: A. Why do primary and secondary alcohols undergo SN1 reaction mechanisms while tertiary alcohols react via SN2 reaction mechanisms? Explain. B. Will the reaction between hydrochloric acid and phenol produce chlorobenzene? Why, or why not? Explain. C. What products would you...

One method for measuring the alcohol content of a liquid is to titrate the ethanol (C2H5OH)...

One method for measuring the alcohol content of a liquid is to titrate the ethanol (C2H5OH) with chromate (CrO4^2-). These reagents react to become Co2 and Cr^+3 respectively. Write the balanced equation for this redoc process under acidic conditions. If a 1.86g sample of an alcoholic beverage is titrated with 25.93 mL of 0.250 M sodium chromate, what is the percent by mass of alcohol in this beverage?

use the following information to determine if the intermolecular forces of isopropyl alcohol are greater or...

use the following information to determine if the intermolecular forces of isopropyl alcohol are greater or weaker than the intermolecular forces of water? the melting point of iso alcohol is about -90c and the boiling point is about 82c. B. What happens to heat energy when it is not increasing the temperature of the substance in the beaker? C.What occurs to the particles of a substance when the substance melts. why does this occur?

Subjects