Question

0.5 mole of sodium sulphate​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

Given,

Number of moles =10

Molecular mass of sodium sulphite (Na2​SO3​)=2× Atomic mass of Na+ atomic mass of sulphur +3× Atomic mass of O

=2×23u+32u+48u

=126u

Molar mass of Na2​SO3​=126g/mol

To calculate the mass, apply the formula:

Numberofmoles=Molarmass(M)Mass(m)​

We can write:

Mass = Number of moles × Molar mass

Mass=10mol×126g/mol

Mass=1260g

Thus, the mass of sodium sulphite is 1260g.

Step-by-step explanation: