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Some Basic Concepts Of Chemistry

Question

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Express each of the following in SI units:
150 pounds (average weight of an Indian male).

Solution

150 pounds:
1 pound = 454 x 10^-3kg
150 pounds = 454 x 10^-3x 150 kg = 68.1 kg

Some More Questions From Some Basic Concepts of Chemistry Chapter

What is the number of significant figures in 9.984?

Express the Avogadro's number (6·023×10²³) upto three significant figures.

What is the result of (5.472 - 1.12) to the appropriate number of signficant figures?

Express 0.0468 in scientific notation.

What does SI units stand for?

What is the relation between temperature in Kelvin (K) and temperature on centigrade scale?

The popular unit of pressure is atmosphere, how is it related to pascal?

What are SI units of the following:

(i) Density
(ii) Molarity
(iii) Energy
(iv) Temperature ?

Out of 5.00 g and 5.0 g which one is more accurate and why?

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