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When measuring the flask, some water spilled. This caused the volume of the flas

ID: 592293 • Letter: W

Question

When measuring the flask, some water spilled. This caused the volume of the flask to be recorded as 8.5 mL too low Too low. Volume and mol are directly related. As V decreases, n will also decrease. Too low. Volume and n are inversely related. As V increases, n will be calculated as too low. OToo high. Volume and n are directly related. As V increases, n will also increase. Unaffected. This error will not change the number of mol affected. OToo high. Volume and n are inversely related. As V decreases, n will be calculated as too high While heating, you were in a rush and did not heat the flask long enough. OToo high. Heating the flask for an insufficient period of time will cause the number of mol to be calculated as too high. OToo low. This will cause most of the volatile liquid to escape and result in the mol being calculated as too low OUnaffected. The number of mol is not directly related to the length of time the flask is heated.

Explanation / Answer

Ans 1 :

Too low. Volume and mol are directly related. As V decreases , n will also decrese

The number of moles is directly related to the volume of the matter , by the law , pV = nRT.

So now when the spilling will cause the volume of water to be dropped , number of moles will also decrease in the flask.

Ans 2 : unaffected. The number of moles is not directly related to the length of the time flask is heated.

Since here flask is heated , and not the matter inside it and anyways the number of moles do not directly relate with the temperature.

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