Question

Suppose 6kg of flour contains 14*10 to the power 6 molecules. How many molecules are there-▪7kg of flour ▪2.1kg of flour

Answer 1

7 kg of flour contains 16.33 × 10^6 molecules

2.1 kg of flour contains 4.9 × 10^6 molecules

according to question,

7 kg of flour contains 14 × 10^6 molecules.

⇒1kg of flour contains 14/6 × 10^6 molecules

⇒7 kg of flour contains (14/6) × 10^6 × 7

= 98/6 × 10^6

= 16.33 × 10^6 molecules.

hence, 7kg of four contains 16.33 × 10^6 molecules.

again, 1kg of flour contains (14/6) ×10^6 molecules

⇒2.1 kg of flour contains (14/6) × 2.1 × 10^6 = 4.9 × 10^6 molecules.

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