How many significant figures should be present in the answer of the following calculations?- \(\frac {0.02856 × 298.15 × 0.112}{0.5785}\)
- \(5 × 5.364\)
- \(0.0125 + 0.7864 + 0.0215\)
- \(\frac {0.02856 × 298.15 × 0.112}{0.5785}\)
- \(5 × 5.364\)
- \(0.0125 + 0.7864 + 0.0215\)
Solution and Explanation
(i) \(\frac {0.02856 × 298.15 × 0.112}{0.5785}\)
Least precise number of calculation = 0.112
Number of significant figures in the answer
= Number of significant figures in the least precise number
= 3
(ii) 5 × 5.364
Least precise number of calculation = 5.364
Number of significant figures in the answer
= Number of significant figures in 5.364
= 4
(iii) 0.0125 + 0.7864 + 0.0215
Since the least number of decimal places in each term is four, the number of significant figures in the answer is also 4.
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Importance of chemistry
Through this extensive subject, we can understand the significance of Chemistry with the help of the given below pointers:
- Chemistry plays a crucial role in understanding various subjects like physics, geology, and biology.
- Chemistry is an important branch of science that explains to us the various compositional properties and interactions of matter. It also helps to understand different chemical reactions.
- Chemistry mainly understands the behavior of fertilizers, alkynes, acids, salts, dyes, polymers, drugs, soaps, and alloys in organic and inorganic chemistry.
- Chemistry plays such an important role in various fields like healthcare, research, food, industrial, and farm activities.