PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoWrite brief answers to the following question:
The mass of one steel screw is 4.11 g. Find the mass of one mole of these steel screws. Compare this value with the mass of the Earth (5.98 × 1024kg).
Which one of the two is heavier and by how many times?
Which one of the two is heavier and by how many times?
One mole of screws weigh = × \(10^2{^4}\) g.
= × \(10^2{^1}\) kg.
Mass of the earth / Mass of 1 mole of screws = \(5.98\) x \(10^2{^4}\)kg / \(2.475\) × \(10^2{^1}\)kg.
= x \(10^3\).
Mass of earth is \(2.4\) x \(10^3\) times the mass of screws.
The earth is \(2400\) times heavier than one mole of screws.
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