Chemistry, asked by kumarlalith426, 1 month ago

Calculate the weight in grams of 24.088x10^23 molecules of H20 ​

Answers

Answered by abhi178
2

we have to calculate the weight in grams of 24.088 × 10²³ molecules of H₂O.

solution : first we should find the no of moles of water molecules.

no of moles of water molecules = no of molecules/avogadro's no

                                                      = 24.088 × 10²³/6.022 × 10²³ = 4 mol

we also know, no of moles of any substance = given weight/molecular weight of the substance.

 molecular weight of water = 18 g/mol

no of moles of water = 4 mol

∴ given weight = no of moles of water × molecular weight of water

                         = 4 mol × 18 g/mol = 72 g

therefore the weight of water is 72 g.

Answered by kumarishrutisah2006
0

Answer:

72 g

Explanation:

number of moles of water = no. of molecules

avogadro's no.

= 24.088 × 10²³

6.022 × 10²³

= 4 mol

molecular mass of H2O = 1×2+16 =18 g/mol

given mass = no. of moles × molecular weight

= 4×18 = 72g

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