Why is it not necessary to dry the inside of a flask that previously had water...
Why is it not necessary to dry the inside of a flask that previously had water inside of it before each time you refilled it?
Homework Answers
The properties (i.e. concentration) of the water being added is not altered by the water already present in the flask because both type of water has same properties. So it is not necessary to dry the inside of a flask that previously had water inside of it before refilling.
But if any other solvent/solution other than water is to be added, the water present previously should be dried completely. Otherwise the water present may change some important property(s) e.g. concentration, reactivity etc of the solvent/solution which will lead to erroneous results in future experiments.
Add Answer to:
Why is it not necessary to dry the inside of a flask that
previously had water...
answer all parts: 2. You measured the volume of the CO2 by filling your flask with...
answer all parts: 2. You measured the volume of the CO2 by filling your flask with water and tightly inserting the stopper. a. Why was it necessary to tightly stop the water-filled flask and then remove the stopper before you emptied the water into a graduated cylinder for measurement? b. Would your calculated molar volume of CO2 (Vm) have been higher or lower if you had forgotten to stopper the flask before measuring the volume of the flask (V1)? Briefly...
A chemical reaction takes place inside a flask submerged in a water bath. The water bath...
A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 6.50 kg of water at 35.3 °C. During the reaction 83.0 kJ of heat flows out of the flask and into the bath. Calculate the new temperature of the water bath. You can assume the specific heat capacity of water under these conditions is 4.18 Jg-K" Round your answer to 3 significant digits. ?
A chemical reaction takes place inside a flask submerged in a water bath. The water bath...
A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 5.40 kg of water at 20.3 °C. During the reaction 119. kJ of heat flows out of the flask and into the bath. K . Be sure your Calculate the new temperature of the water bath. You can assume the specific heat capacity of water under these conditions is 4.18 Jig answer has the correct number of significant digits.
A chemical reaction takes place inside a flask submerged in a water bath. The water bath...
A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 3.50 kg of water at 23.2 °C. During the reaction 150. kJ of heat flows out of the flask and into the bath. Calculate the new temperature of the water bath. You can assume the specific heat capacity of water under these conditions is 4.18 Jg='K answer to 3 significant digits. Round your 5
A chemical reaction takes place inside a flask submerged in a water bath. The water bath...
A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 4.80 kg of water at 36.4 °C. During the reaction 127. WJ of heat flows out of the bath and into the flask. - 1 Calculate the new temperature of the water bath. You can assume the specific heat capacity of water under these conditions is 4.18 J'g 'K Round your answer to 3 significant digits. X
A chemical reaction takes place inside a flask submerged in a water bath. The water bath...
A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 3.30 kg of water at 22.9 degrees celcius. During the reaction 112. kJ of heat flows out of the bath and into the flask. Calculate the new temperature of the water bath. You can assume the specific heat capacity of water under these conditions is 4.18·J·g−1K−1. Round your answer to 3 significant figures
A chemical reaction takes place inside a flask submerged in a water bath. The water bath...
A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 9.40 kg of water at 39.3 °C. During the reaction 96.1 kJ of heat flows out of the flask and into the bath Calculate the new temperature of the water bath. You can assume the specific heat capacity of water under these conditions is 4.18 J-g-K-1. Round your answer to 3 significant digits Де x10
A chemical reaction takes place inside a flask submerged in a water bath. The water bath...
A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 2.70 kg of water at 31.9 °C. During the reaction 70.4 kJ of heat flows out of the bath and into the flask. K Be sure your Calculate the new temperature of the water bath. You can assume the specific heat capacity of water under these conditions is 4.18 Jog answer has the correct number of significant digits. X 5 ?
A chemical reaction takes place inside a flask submerged in a water bath. The water bath...
A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 4.80 kg of water at 36,4 °C. During the reaction 127. kJ of heat flows out of the bath and into the flask. Calculate the new temperature of the water bath. You can assume the specific heat capacity of water under these conditions is 4.18 JgK Round your answer to 3 significant digits. ale х 6 2 A
Ksp of Ca(IO3)2 lab questions 1) Why is it necessary to filter the calcium iodate solution through dry filter paper, without adding any water? 2) If water had been added during the filtration process,...
Ksp of Ca(IO3)2 lab questions 1) Why is it necessary to filter the calcium iodate solution through dry filter paper, without adding any water? 2) If water had been added during the filtration process, how would this affect your calculated value for the Ksp of calcium iodate? Clearly explain whether your value would be too high or too low compared to the actual Ksp and why.
A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 6.50 kg of water at 35.3 °C. During the reaction 83.0 kJ of heat flows out of the flask and into the bath. Calculate the new temperature of the water bath. You can assume the specific heat capacity of water under these conditions is 4.18 Jg-K" Round your answer to 3 significant digits. ?
A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 5.40 kg of water at 20.3 °C. During the reaction 119. kJ of heat flows out of the flask and into the bath. K . Be sure your Calculate the new temperature of the water bath. You can assume the specific heat capacity of water under these conditions is 4.18 Jig answer has the correct number of significant digits.
A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 3.50 kg of water at 23.2 °C. During the reaction 150. kJ of heat flows out of the flask and into the bath. Calculate the new temperature of the water bath. You can assume the specific heat capacity of water under these conditions is 4.18 Jg='K answer to 3 significant digits. Round your 5
A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 4.80 kg of water at 36.4 °C. During the reaction 127. WJ of heat flows out of the bath and into the flask. - 1 Calculate the new temperature of the water bath. You can assume the specific heat capacity of water under these conditions is 4.18 J'g 'K Round your answer to 3 significant digits. X
A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 9.40 kg of water at 39.3 °C. During the reaction 96.1 kJ of heat flows out of the flask and into the bath Calculate the new temperature of the water bath. You can assume the specific heat capacity of water under these conditions is 4.18 J-g-K-1. Round your answer to 3 significant digits Де x10
A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 2.70 kg of water at 31.9 °C. During the reaction 70.4 kJ of heat flows out of the bath and into the flask. K Be sure your Calculate the new temperature of the water bath. You can assume the specific heat capacity of water under these conditions is 4.18 Jog answer has the correct number of significant digits. X 5 ?
A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 4.80 kg of water at 36,4 °C. During the reaction 127. kJ of heat flows out of the bath and into the flask. Calculate the new temperature of the water bath. You can assume the specific heat capacity of water under these conditions is 4.18 JgK Round your answer to 3 significant digits. ale х 6 2 A
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago