Solve the following question: Round off the following quantity to three significant figures: 79,000 m - Chemistry

Solve the following question:

Round off the following quantity to three significant figures:

79,000 m

संख्यात्मक

7.90 × 10⁴ m

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अध्याय 2: Introduction to Analytical Chemistry - Exercises [पृष्ठ २४]

अध्याय 2 Introduction to Analytical Chemistry
Exercises | Q 3. (C)(g) | पृष्ठ २४

Choose the correct option:

In Avogadro’s constant 6.022 × 10²³ mol^-1, the number of significant figures is ________

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:

0.00254 m

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 three significant figures:

42,150

Solve the following question:

Round off the following quantity to three significant figures:

23,642,000 mm

Solve the following question:

Round off the following quantity to three significant figures:

0.0041962 kg

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