Question

1. What is the liquid amount required to make a sample of 8000ppm acetone in air....

1. What is the liquid amount required to make a sample of 8000ppm acetone in air.

2. Design a kind of sensor which can differentiate between isoproply alcohol, methanol and ethanol.

3. How can carbonmonoxide be detected?

4. Same as Q3 but for methane (CH4).

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
(1) Question 1 Which of the following is incorrect? 1- Air vents allow air into the...
(1) Question 1 Which of the following is incorrect? 1- Air vents allow air into the burner 2- The gas inlet controls the amount of methane gas burned in the bunsen burner 3- The barrel controls the amount of air going into the burner 4- The needle valve controls the amount of methane gas allowed into the bunsen burner Question 2 Which of the following correctly describes how to obtain mass/weight of a sample by difference? 1- Subtract the mass...
1. Calculate the amount of heat required to convert 1 g of liquid water at 67°C...
1. Calculate the amount of heat required to convert 1 g of liquid water at 67°C to steam at 100°C. The specific heat of liquid water is 4.18 J/g°C and the heat of vaporization is 40.7 kJ/mol. 2400 J 2.2 kJ 8.31 J 22.6 kJ 40.8 kJ 2. Which one of the following is true about surfactants? they act to decrease surface tension they form micelles on the surface of water none of these they are generally very small, highly...
1) A liquid displays a convex meniscus in a graduated cylinder. What can be definitely said...
1) A liquid displays a convex meniscus in a graduated cylinder. What can be definitely said about the liquid? The molecule must be nonpolar like water. The liquid does not have strong intermolecular forces. The adhesion forces between the liquid molecules and the graduated cylinder are greater than the cohesion forces between the liquid molecules. The cohesion forces between the liquid molecules are greater than the adhesion forces between the liquid and the graduated cylinder. There is not enough information...
Fermentation of a Carbohydrate: Ethanol from Sucrose 1. What is the product obtained through anaerobic fermentation...
Fermentation of a Carbohydrate: Ethanol from Sucrose 1. What is the product obtained through anaerobic fermentation of a carbohydrate? 2. When air enters the fermentation mixture, aerobic oxidation takes place. What is the end product? 3. Amaretto liqueur is about 28% alcohol. What is its proof? 4. Why can't you get 100% ethanol by distillation of the solution from the fermentation process? 5. Why doesn't the fermentation process produce a concentration of ethanol greater than 10-15%? 6. Give a complete,...
1. A 14.9 g sample of an aqueous solution of hydrobromic acid contains an unknown amount...
1. A 14.9 g sample of an aqueous solution of hydrobromic acid contains an unknown amount of the acid.   If 13.5 mL of 0.583 M sodium hydroxide are required to neutralize the hydrobromic acid, what is the percent by mass of hydrobromic acid in the mixture? 2.A 14.0 g sample of an aqueous solution of nitric acid contains an unknown amount of the acid.   If 26.6 mL of 0.725 M barium hydroxide are required to neutralize the nitric acid, what...
1.  Forced vital capacity (FVC) is the amount of air that can be forced out of the...
1.  Forced vital capacity (FVC) is the amount of air that can be forced out of the lungs.  A random sample of 9 female volleyball players has a mean FVC of 3.56 liters with a standard deviation of 0.17 liters.  Suppose that you wish to use these results to test the following statistical question: Do female volleyball players have greater mean FVC than the general population of females of the same age, which is 3.4 liters?  Use the steps outlined below to answer this...
1) What conclusion(s) can you make concerning the H-X-H bond angles and the number of unshared...
1) What conclusion(s) can you make concerning the H-X-H bond angles and the number of unshared (lone) pairs of electrons around the central atom X for methane, ammonia and water? 2) Compare the Semi-Empirical values for Heat of Formation between ‘’cis’’ and ‘’trans’’ HONO and explain which one is more stable. Remember to convert the energy values from kcal mol-1 to kJ mol-1 on your pro-forma sheet. 3) Write down the PM3 and HF optimised structures of the cis/trans isomers...
1. Which of the following is true about a monopoly? 1-) It will always earn economic...
1. Which of the following is true about a monopoly? 1-) It will always earn economic profit 2-) It will always produce the same as a perfectly competitive firm 3-) It will always be subject to government regulation 4-) Its demand curve is generally less elastic than in more competitive markets 5-) None of these are correct. 2. For its cookies Paradise Bakery has the cost function c(Q) =1/3 Q3, where Q is the number of cookies it can make...
A weather balloon contains 222 L of He gas at 20. °C and 760. mmHg. What...
A weather balloon contains 222 L of He gas at 20. °C and 760. mmHg. What is the volume of the balloon when it ascends to an altitude where the temperature is -40. °C and 540. mmHg? 1 What volume does 12.5 g of Ar gas at a pressure of 1.05 atm and a temperature of 322 K occupy? Would the volume be different if the sample were 12.5 g of He gas under the same conditions? How many moles...
1. (6 pts) The Graduate Record Examination (GRE) is a test required for admission to many...
1. (6 pts) The Graduate Record Examination (GRE) is a test required for admission to many U.S. graduate schools. Students' scores on the quantitative portion of the GRE follow a normal distribution with mean 150 and standard deviation 8.8. In addition to other qualifications, a score of at least 160 is required for admission to a particular graduate school. What proportion of combined scores can be expected to be over 160? What proportion of combined GRE scores can be expected...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT