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Solve the following question: Round off the following quantity to two significant figures: 0.00254 m - Chemistry

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प्रश्न

Solve the following question:

Round off the following quantity to two significant figures:

0.00254 m

संख्यात्मक

उत्तर

0.0025 m

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Mathematical Operation and Error Analysis
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 2: Introduction to Analytical Chemistry - Exercises [पृष्ठ २४]

APPEARS IN

बालभारती Chemistry [English] 11 Standard
अध्याय 2 Introduction to Analytical Chemistry
Exercises | Q 3. (B)(b) | पृष्ठ २४

संबंधित प्रश्न

Choose the correct option:

The number of significant figures in 1.50 × 104 g is __________


What do you mean by significant figures?


Why there is a need of rounding off figures during calculation?


Why is accurate measurement crucial in science?


Solve the following question:

Round off the following quantity to two significant figures:

25.55 mL


Solve the following question:

Round off the following quantity to two significant figures:

1.491 × 105 mg


Solve the following question:

Round off the following quantity to two significant figures:

199 g


Solve the following question:

Round off the following quantity to three significant figures:

1.43 cm3


Solve the following question:

Round off the following quantity to three significant figures:

458 × 102 cm


Solve the following question:

Round off the following quantity to three significant figures:

79,000 m


Solve the following question:

Round off the following quantity to three significant figures:

42,150


Solve the following question:

Round off the following quantity to three significant figures:

649.85


Solve the following question:

Round off the following quantity to three significant figures:

23,642,000 mm


Solve the following question:

Express the following sum to the appropriate number of significant figures:

319.5 g − 20460 g − 0.0639 g − 45.642 g − 4.173 g


Solve the following problem:

Give the number of significant figures for the following.

1.230 × 104


Solve the following problem:

Give the number of significant figures for the following.

1.23 × 104


Solve the following problem:

Give the number of significant figures for the following.

1.89 × 10-4


Solve the following problem:

Express the given quantity with or without exponents as the case may be.

1.230 × 104


Solve the following problem:

Express the given quantity with or without exponents as the case may be.

1.23 × 104


Solve the following problem:

Express the given quantity with or without exponents as the case may be.

1.89 × 10-4


Solve the following problem:

Write the following in exponential notation:

0.00461


Solve the following problem:

Write the following in exponential notation:

198.75


Solve the following problem:

Perform the following operation:

2.12 × 106 − 3.5 × 105


Define: Least count


Define: Least count


Define: Least count


Define Least count. 


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