The density of polystyrene, a plastic commonly used to make CD cases and transparent cups, is 0.037 lbs/in3. Calculate the density in units of g/cm3.

검증된 단계별 안내

First, convert the density from pounds per cubic inch (lbs/in3) to grams per cubic centimeter (g/cm3).

Recall the conversion factors: 1 lb is approximately equal to 453.592 g, and 1 inch is equal to 2.54 cm.

Convert the volume from cubic inches to cubic centimeters using the conversion factor for length (1 in = 2.54 cm). Remember that you need to cube the conversion factor because you are converting cubic units.

Calculate the new volume in cubic centimeters by cubing the conversion factor (2.54 cm/in) and multiplying it by the original volume in cubic inches.

Finally, convert the mass from pounds to grams and divide by the new volume in cubic centimeters to find the density in g/cm3.

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주요 개념

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

Density

Density is defined as mass per unit volume, typically expressed in units such as grams per cubic centimeter (g/cm³) or pounds per cubic inch (lbs/in³). It is a physical property that helps identify substances and can influence their behavior in different environments. Understanding density is crucial for converting between different measurement systems and for applications in material science.

Unit Conversion

Unit conversion is the process of converting a quantity expressed in one set of units to another set of units. In this case, converting density from lbs/in³ to g/cm³ involves using conversion factors that relate these units. Mastery of unit conversion is essential in chemistry to ensure accurate calculations and comparisons between different measurements.

The density of polystyrene, a plastic commonly used to make CD cases and transparent cups, is 0.037 lbs/in3. Calculate the density in units of g/cm3.

비슷한 문제에 대한 검증된 영상 답변:

주요 개념

Density

Unit Conversion

Conversion Factors