Question

What is the mass of NaC2H3O2*3H2O?

Answer 1

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Mass of NaC₂H₃O₂.3H₂O is given by the sum of molar mass of each elements in the compound.

We have,

Molar mass of sodium M_(Na) = 23 g/mol.

Molar mass of carbon M_(C) = 12 g/mol.

Molar mass of hydrogen M_(H) = 1 g/mol.

Molar mass of oxygen M_(O) = 16 g/mol.

Therefore, molar mass of NaC₂H₃O₂.3H₂O is given by,

M = M(Na) + 2. Mc) + 3.M(H) + 2.Mo) +6.M(H) + 3.Mo

.

M = 23 g/mol+2. (12 g/mol)+3.(19/mol)+2.(16 g/mol)+6.(1 g/mol)+ 3.(16 g/mol)

.

:: M = 23 g/mol +24 g/mol +3 g/mol +32 g/mol +6 g/mol +48 g/mol

.

:M = 136 g/mol

Therefore, molar mass of NaC₂H₃O₂.3H₂O​​​​​​​ is
136 g/mol

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