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Question 9 of 15 Map A Sapling Learning ppose you were calibrating a 25.0 mL vol

ID: 476877 • Letter: Q

Question

Question 9 of 15 Map A Sapling Learning ppose you were calibrating a 25.0 mL volumetric flask using distilled water. The flask temperature was at U C, and you assumed that the distilled water was as well. However, you later discover that the actual water temperature was 11 C instead. How is the mass of the 25.0 mL of distilled water you measured at 11 different from the mass of 25.0 m of distilled water at 20°C? O t is less than the mass of water at 20°C. O It is greater than the mass of water at 200C. O t has the same mass as the water at 20°C. the masses are different s the error in mass due to the temperature difference a systematic or random error? It is neither a systematic or random error because the masses are the same. t is a systematic error. O It is both a systematic and random error. O It is a random error.

Explanation / Answer

Is the mass of water you measured greater or less than the mass of 25.0 mL of distilled water at 20 degree C?

Answer :

It is greater than mass of water at 20 c

Water is generally more dense ta lower temperature

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Is this error in mass a systematic or random error?

Answer: systematic

Because it can be corrected (source of error is known)