Ch.1 - Chemical Tools: Experimentation & Measurement

McMurry8th EditionChemistryISBN: 9781292336145당신이 사용하는 게 아니라요?교과서 변경

McMurry 8th Edition

Ch.1 - Chemical Tools: Experimentation & Measurement

문제 2

1장, 문제 2

Convert 0.055 milliseconds to seconds, and write the answer in scientific notation. (LO 1.3) (a) 5.5 * 10-3 s (b) 5.5 * 10-4 s (c) 5.5 * 10-5 s (d) 5.5 * 10-7 s

검증된 단계별 안내

Identify the conversion factor between milliseconds and seconds. There are 1000 milliseconds in one second, so 1 millisecond is equal to 1/1000 seconds.

Convert 0.055 milliseconds to seconds by multiplying 0.055 by the conversion factor (1/1000).

Perform the multiplication: 0.055 * (1/1000) to find the value in seconds.

Express the result in scientific notation. Scientific notation involves writing a number as a product of a number between 1 and 10 and a power of 10.

Compare the result with the given options to determine which one matches the scientific notation of the converted value.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

영상 길이:

37s

주요 개념

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

Unit Conversion

Unit conversion is the process of converting a quantity expressed in one unit to another unit. In this case, we are converting milliseconds to seconds. Since 1 millisecond is equal to 0.001 seconds, understanding this relationship is crucial for accurately performing the conversion.

Scientific Notation

Scientific notation is a way of expressing numbers that are too large or too small in a compact form. It is written as a product of a number between 1 and 10 and a power of ten. For example, 0.000055 can be expressed as 5.5 x 10^-5, which simplifies calculations and comparisons of very large or small values.

Significant Figures

Significant figures are the digits in a number that contribute to its precision. When performing calculations, it is important to maintain the correct number of significant figures to ensure accuracy. In the context of the question, the original value of 0.055 milliseconds has two significant figures, which should be reflected in the final answer.

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