When an irregularly shaped chunk of silicon weighing 8.763 g was placed in a graduated cylinder containing 25.00 mL of water, the water level in the cylinder rose to 28.76 mL. What is the density of silicon in g/cm3?

검증된 단계별 안내

Calculate the volume of the silicon chunk by subtracting the initial water volume from the final water volume. Use the formula: \( V_{\text{silicon}} = V_{\text{final}} - V_{\text{initial}} \).

Convert the volume of the silicon from milliliters to cubic centimeters (cm3), noting that 1 mL is equivalent to 1 cm3.

Use the mass of the silicon chunk given in the problem.

Calculate the density of the silicon using the formula: \( \text{Density} = \frac{\text{Mass}}{\text{Volume}} \).

Express the density in grams per cubic centimeter (g/cm3).

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

영상 길이:

도움이 되었나요?

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Density

Density is defined as the mass of an object divided by its volume, typically expressed in grams per cubic centimeter (g/cm³). It is a physical property that helps identify substances and can be calculated using the formula: density = mass/volume. In this question, the density of silicon can be determined by measuring the mass of the silicon chunk and the volume of water it displaces.

Volume Displacement

Volume displacement is a method used to measure the volume of an irregularly shaped object by observing the change in liquid level when the object is submerged. According to Archimedes' principle, the volume of water displaced by the object is equal to the volume of the object itself. In this case, the increase in water level from 25.00 mL to 28.76 mL indicates the volume of the silicon chunk.

Measurement Units

Understanding measurement units is crucial in chemistry, as it ensures accurate calculations and conversions. In this problem, mass is measured in grams (g) and volume in milliliters (mL), which can be directly converted to cubic centimeters (cm³) since 1 mL is equivalent to 1 cm³. This knowledge is essential for calculating density correctly, as both mass and volume must be in compatible units.