Answer:
Molar ratio of the compound is 1:1 and the type of hydrate is Mono hydrate.
Explanation:
From the given,
Mass of sodium carbonate
= 8.85 g
Loss mass
= 1.28 g
Actual weight of sodium carbonate = 8.85 g - 1.28 g = 7.57 g


Therefore, the compound has only one water molecule.
Molecular formula of the compound is
an name of the compound is <u>sodium carbonate mono hydrate.</u>
Hence, the type of the compound is Mono hydrate.
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<em>that the relative atomic mass of the middle element in each triad was close to the average of the relative atomic masses of the other two elements.</em>
- <em>This gave other scientists a clue that relative atomic masses were important when arranging the elements.</em>
<h2><em>hope</em><em> </em><em>it</em><em> </em><em>helps!</em></h2>