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What do you mean by significant figures?

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प्रश्न

What do you mean by significant figures?

एक पंक्ति में उत्तर
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उत्तर

The significant figures in measurement or result are the number of digits known with certainty plus one uncertain digit.

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अध्याय 2: Introduction to Analytical Chemistry - Exercises [पृष्ठ २३]

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बालभारती Chemistry [English] Standard 11 Maharashtra State Board
अध्याय 2 Introduction to Analytical Chemistry
Exercises | Q 2. (B) (i) | पृष्ठ २३

संबंधित प्रश्न

State the rules for deciding 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:

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:

643 cm2


Solve the following question:

Round off the following quantity to three significant figures:

0.0179 g


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:

23,642,000 mm


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

2.3 × 103 mL + 4.22 × 104 mL + 9.04 × 103 mL + 8.71 × 105 mL


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:

Express the following quantity in exponential terms.

0.0003498


Solve the following problem:

Express the following quantity in exponential terms.

235.4678


Solve the following problem:

Express the following quantity in exponential terms.

1569.00


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.

0.002030


Solve the following problem:

Give the number of significant figures for the following.

1.23 × 104


Solve the following problem:

Write the following in exponential notation:

3,672,199


Solve the following problem:

Perform the following operation:

3.971 × 107 + 1.98 × 104


Solve the following problem:

Perform the following operation:

4.11 × 10−3 + 8.1 ×10−4


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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