1 mL of water contains 20 drops. Then number of molecules in a drop of water is _______ molecules.
(A) 6.023 × 10²³
(B) 1.376 × 10²⁶
(C) 1.344 × 10¹⁸
(D) 4.346 × 10²⁰
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20 drops contain 1ml of water.
1 drop will contain1/20 ml of water
= 0.05ml of water
22400 ml of water contain 6.022×10*23 molecules.
0.05ml will contain 6.022×10*23×0.05/22400
=0.301 ×10*23 /22400
=30100×10*18/22400
=1.34×10*18 molecules.
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1 drop will contain1/20 ml of water
= 0.05ml of water
22400 ml of water contain 6.022×10*23 molecules.
0.05ml will contain 6.022×10*23×0.05/22400
=0.301 ×10*23 /22400
=30100×10*18/22400
=1.34×10*18 molecules.
mark it as brainliest.
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