If 1 mL of water contains 20 drops then number of molecules in a drop of water is

Question

If 1 mL of water contains 20 drops then number of molecules in a drop of water is (A)  6.023× 1023 molecules (B)  1.376× 1026 molecules (C) 1.344 × 1021 molecules (D)  4.346× 1020 molecules

Tardigrade Admin · Accepted Answer

∵ 22400 mL water contains, water molecules =6.023 × 1023 ∴ In 1 mL, the number of water molecules =(6.023 × 1023/22400) Since, 1 mL contains 20 drops, therefore, number of water molecules in 1 drop =(6.023 × 1023/22400 × 20) =1.344 × 1018 molecules

Q. If $1 m L$ of water contains $20$ drops then number of molecules in a drop of water is

$6.023 \times 1 0^{23}$ molecules

$1.376 \times 1 0^{26}$ molecules

$1.344 \times 1 0^{21}$ molecules

$4.346 \times 1 0^{20}$ molecules

Q. If 1mL of water contains 20 drops then number of molecules in a drop of water is

6.023×1023 molecules

1.376×1026 molecules

1.344×1021 molecules

4.346×1020 molecules

∵22400mL water contains, water molecules =6.023×1023 ∴ In 1mL, the number of water molecules =224006.023×1023​ Since, 1mL contains 20 drops, therefore, number of water molecules in 1 drop =22400×206.023×1023​ =1.344×1018 molecules

Q. If $1 m L$ of water contains $20$ drops then number of molecules in a drop of water is

$6.023 \times 1 0^{23}$ molecules

$1.376 \times 1 0^{26}$ molecules

$1.344 \times 1 0^{21}$ molecules

$4.346 \times 1 0^{20}$ molecules