Question

Toluene's boiling point is range from 100 to 116 C. and my unknow boiling range is...

Toluene's boiling point is range from 100 to 116 C. and my unknow boiling range is 101 to 107 C

How do you tell if it's pure or not by determination of temperature range, and continuous drop rate?

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Ans. As the boiling point of Toluene is 110 degree celsius. and the boiling point range of unknown is coming at the range of 101 to 107 degree celsius.

There are two possibilities

compound cannot be toluene as toluene boiling point is 110 degree celsius and also in the presence of impurities its boiling point should be increased not decreased.

Compound may be toluene but the thermometer is not calibrated and can show an error of 5 to 10 degree celsius. So. it is recommended to first calibrated the thermometer.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Estimate the vapor pressure of phenol at 100 °C. for phenol, the boiling point temperature is181.8...
Estimate the vapor pressure of phenol at 100 °C. for phenol, the boiling point temperature is181.8 °C, and Kf = 1.15.
The normal boiling point of water is 100 c. use the Clasius-Clapeyron equation to determine the...
The normal boiling point of water is 100 c. use the Clasius-Clapeyron equation to determine the temperature (in °C) at which water will boil in the rocky mountains where atmospheric pressure is 0.657 atm. ΔHvap of water is 40.7 KJ/mole.
Hi, organic chemistry folks! Can someone edit my short paragraph about my experiment on simple distillation...
Hi, organic chemistry folks! Can someone edit my short paragraph about my experiment on simple distillation of an unknown organic liquid. It needs to be concise, clear, intepreted, and contain relevant values. Hopefully, I did those but I'm just having trouble wording it all together. Thanks! The purpose of this laboratory experiment was to purify and identify a volatile organic liquid of unknown #3 by performing a simple distillation technique. The purified unknown #3 was characterized via BP and IR....
150 grams of boiling water (temperature 100°C, heat capacity 4.2 J/gram/K) are poured into an aluminum...
150 grams of boiling water (temperature 100°C, heat capacity 4.2 J/gram/K) are poured into an aluminum pan whose mass is 970 grams and initial temperature 25°C (the heat capacity of aluminum is 0.9 J/gram/K). (a) After a short time, what is the temperature of the water? (b) What simplifying assumptions did you have to make? The thermal energy of the aluminum doesn't change. Energy transfer between the system (water plus pan) and the surroundings was negligible during this time. The...
The boiling point of cooking oil is about 300 °C. If you wanted to separate ethyl...
The boiling point of cooking oil is about 300 °C. If you wanted to separate ethyl acetate from another organic solvent other than cooking oil, rather than oil, what would you do differently?
The boiling point of liquid nitrogen at 1 atm pressure (NBP) is -195.8°C. Liquid nitrogen stored...
The boiling point of liquid nitrogen at 1 atm pressure (NBP) is -195.8°C. Liquid nitrogen stored in an insulated vessel at 1 atm (abs) evaporates and the nitrogen vapour is compressed to 50 atm (abs) and heated to a temperature of 70°C at the rate of 5.5 kg/min. What is the volumetric flowrate of the gas from the heat exchanger?  
A drop of water with a mass of 0.48 g is vaporized at 100 ∘C and...
A drop of water with a mass of 0.48 g is vaporized at 100 ∘C and condenses on the surface of a 55-g block of aluminum that is initially at 25 ∘C. If the heat released during condensation goes only toward heating the metal, what is the final temperature in Celsius of the metal block? (The specific heat capacity of aluminum is 0.903 J/(g⋅∘C).) Express the temperature in Celsius to two significant figures. Calculate the amount of heat required to...
110 grams of boiling water (temperature 100°C, heat capacity 4.2 J/gram/K) are poured into an aluminum...
110 grams of boiling water (temperature 100°C, heat capacity 4.2 J/gram/K) are poured into an aluminum pan whose mass is 930 grams and initial temperature 26°C (the heat capacity of aluminum is 0.9 J/gram/K). (a) After a short time, what is the temperature of the water? Entry field with correct answer °C (c) Next you place the pan on a hot electric stove. While the stove is heating the pan, you use a beater to stir the water, doing 19638...
Hi organic chemistry folks! Is there someone who can please edit any sentence structure problems (wording)...
Hi organic chemistry folks! Is there someone who can please edit any sentence structure problems (wording) and grammar issues for my short paragraph lab on simple distillation of an unknown liquid? The purpose of this laboratory experiment was to perform a simple distillation in order to characterize via boiling point and IR spectrum of an unknown #3 volatile organic liquid. The first drop of the distillate had a distillation temperature of 58.0 °C and a constant rate of distillation of...
Benzene is a known human carcinogen. The boiling point of benzene is 80. °C (reference 1)....
Benzene is a known human carcinogen. The boiling point of benzene is 80. °C (reference 1). a) Research online to find the short term exposure limit (STEL) for benzene. What does the STEL mean? b) A friend is planning to do an experiment with liquid benzene at 21 °C on the open bench top in a small (18 m3) poorly ventilated room (i.e. consider the room to be a closed system for this question). Convert the STEL to vapour pressure...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT