When making the sucrose solution in Part A you measure the correct amount of suc

Question

When making the sucrose solution in Part A you measure the correct amount of sucrose on the scale. However, some of the sucrose was spilled on the balance and not into the beaker. How will this error affect the calculated mass percent (will the resulting calculated mass percent be too high, too low or unaffected)?
Too high. Grams would be reported too high. As grams of sucrose increases, so does the mass percent of sucrose.
Too low. Since some of the sucrose is left on the balance, less mass is used in the solution. As grams of sucrose decreases, so does mass percent of sucrose.
Unaffected. The mass used in the calculation will not be affected that much, so density will remain unaffected.
which is correct?

Explanation / Answer

As the compound spilled on the balance therefore mass of weighed will contain the total mass calculated... but this mass does not added in the beaker

therefore

% mass percent = mass of sucrose / total mass * 100

thus leads to a low mass percent.

the correct answer is

Too low. Since some of the sucrose is left on the balance, less mass is used in the solution. As grams of sucrose decreases, so does mass percent of sucrose.

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