14. Your thermometer, when calibrated reads 102˚C in boiling water and -1˚C in an ice bath....
14. Your thermometer, when calibrated reads 102˚C in boiling water and -1˚C in an ice bath. Explain how you would correct for your thermometer’s inaccuracy in each of the following cases.
a. You wish to concentrate a sucrose solution so that it boils at 110˚C.
b. You wish to record the correct boiling point of a liquid that boils when your thermometer reads 96˚C.
c. You wish to record the correct freezing point of a solution that freezes when your thermometer reads -5˚C.
Homework Answers
Hi bloke,
Very sorry i am unable to solve part b of your question. Sincerely saying i don't know exactly hoe to solve. Please rate my part a and part c. Very sorry again.
Thanks
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14. Your thermometer, when calibrated reads 102˚C in
boiling water and -1˚C in an ice bath....
A platinum resistance thermometer has a resistance of 200 Ω when placed in an ice 0◦C...
A platinum resistance thermometer has a resistance of 200 Ω when placed in an ice 0◦C bath and 232.6 Ω when immersed in a crucible containing a melting substance. What is the melting point of the substance? The temperature coefficient of the platinum is 0.00392 (◦C)−1 . The resistor was calibrated at a temperature of 20◦C. Answer in units of ◦C.
A platinum resistance thermometer has a resistance of 200 Ω when placed in an ice 0◦C...
A platinum resistance thermometer has a resistance of 200 Ω when placed in an ice 0◦C bath and 204.7 Ω when immersed in a crucible containing a melting substance. What is the melting point of the substance? The temperature coefficient of the platinum is 0.00392 (◦C)−1 . The resistor was calibrated at a temperature of 20◦C. Answer in units of ◦C.
The normal boiling point of a certain liquid X is 115.60°C , but when 13.6 g...
The normal boiling point of a certain liquid X is 115.60°C , but when 13.6 g of iron(III) chloride ( FeCl3 ) are dissolved in 150.g of X the solution boils at 116.2°C instead. Use this information to calculate the molal boiling point elevation constant Kb of X . Be sure your answer is rounded to the correct number of significiant digits
8. What is the final boiling point of a 1.25 molal solution of sugar in water?...
8. What is the final boiling point of a 1.25 molal solution of sugar in water? The Kb for water is 0.512 C/m. (For sugar i = l.) 9. A solution was prepared by dissolving 0.52 mol hexane into 400g CCl4. What is the change in freezing point of this solution? Carbon tetrachloride has a freezing point depression constant of 29.8 Cm,and freezes at-23。. 10. A solution was prepared by dissolving 0.26 moles of ethanol (C2HsOH) into 750g Diethyl ether....
The normal boiling point of a certain liquid X is 121.6°C, but when 86.08g of urea...
The normal boiling point of a certain liquid X is 121.6°C, but when 86.08g of urea NH22CO are dissolved in 750.g of X, it is found that the solution boils at 124.5°C instead. Use this information to calculate the molal boiling point elevation constant Kb of X Round your answer to 2 significant digits.
The normal freezing point of a certain liquid X is 7.20°C, but when 41.9g of ammonium...
The normal freezing point of a certain liquid X is 7.20°C, but when 41.9g of ammonium chloride (NH4Cl) are dissolved in 800.g of X the solution freezes at 1.3°C instead. Use this information to calculate the molal freezing point depression constant Kf of X.Be sure your answer is rounded to the correct number of significiant digits.
A special mercury thermometer which reads in Celsius has a distance of 8.3 mm between each...
A special mercury thermometer which reads in Celsius has a distance of 8.3 mm between each degree marking (for example: from 2°C to 3° is 8.3 mm). If the temperature in the morning was 62 °F and the temperature later on around lunch time was 92°F, how many mm did the level of the liquid travel up the thermometer? The sucrose (C12H22011) in sugarcane can react with with water to produce ethanol (C2H,O) and carbon dioxide. In this way, sugarcane...
The normal freezing point of a certain liquid X is 4.1 C , but when 27.84...
The normal freezing point of a certain liquid X is 4.1 C , but when 27.84 g of urea ((NH2)2CO) are dissolved in 750 g of X , it is found that the solution freezes at -0.7 C instead. Use this information to calculate the molal freezing point depression constant Kf of X . Be sure your answer has the correct number of significant digits
8. The normal freezing point of a certain liquid X is 0.7 °C, but when 15....
8. The normal freezing point of a certain liquid X is 0.7 °C, but when 15. g of urea, (NH2)2CO, are dissolved in 250. g of X, it is found that the solution freezes at -5.8 °C instead. Use this information to calculate the molal freezing point depression constant Kr of X. Be sure your answer has the correct number of significant digits.
1. What is the boiling point of a 3.0 m Ca(NO3)2 solution in water? Where: the...
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8. What is the final boiling point of a 1.25 molal solution of sugar in water? The Kb for water is 0.512 C/m. (For sugar i = l.) 9. A solution was prepared by dissolving 0.52 mol hexane into 400g CCl4. What is the change in freezing point of this solution? Carbon tetrachloride has a freezing point depression constant of 29.8 Cm,and freezes at-23。. 10. A solution was prepared by dissolving 0.26 moles of ethanol (C2HsOH) into 750g Diethyl ether....
A special mercury thermometer which reads in Celsius has a distance of 8.3 mm between each degree marking (for example: from 2°C to 3° is 8.3 mm). If the temperature in the morning was 62 °F and the temperature later on around lunch time was 92°F, how many mm did the level of the liquid travel up the thermometer? The sucrose (C12H22011) in sugarcane can react with with water to produce ethanol (C2H,O) and carbon dioxide. In this way, sugarcane...
8. The normal freezing point of a certain liquid X is 0.7 °C, but when 15. g of urea, (NH2)2CO, are dissolved in 250. g of X, it is found that the solution freezes at -5.8 °C instead. Use this information to calculate the molal freezing point depression constant Kr of X. Be sure your answer has the correct number of significant digits.
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