Question

Select the effect of the size of a sample on the melting point measurement

A) the larger the sample, the more accurate the measurement
B) the sample should not be large, because a large sample would produce a higher and broader mp range
C) the size of the sample doesn't affect the mp measurement

Answer 1

B) the sample should not be large, because a large sample would produce a higher and broader mp range.

The size of the sample can have an effect on the melting point measurement. Using a large sample size can lead to a higher and broader melting point range, making it more difficult to accurately determine the melting point of the substance. This is because a larger sample will take longer to heat uniformly, resulting in a less precise melting point measurement. Additionally, a larger sample may contain impurities that can affect the melting point range. Therefore, it is recommended to use a small sample size when measuring the melting point of a substance to obtain accurate and precise results.

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