Answer to Question #56136 in General Chemistry for Sarah Jagielski
where n – is a number of moles of a substance(mol), m – mass of a substance(g), M – molar mass of a substance (g/mol).
Then n = 0.38/84.3139 = 0.0045 moles
Answer: 0.0045 moles is the number of moles of MgCO3
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