(a) In the certain hydrated salt MSO34H2O, the mass percentage of H2O is 44.71%.
Identify the element M in the salt?
(b) A certain element has two naturally occurring isotopes.
The mass of one of the isotopes is 106.905 amu and its
The mass of the second isotope is 108.883 amu.
Calculate the
Write the chemical symbols of the isotopes
(c) An organic compound consists of carbon, hydrogen and sulfur only.
The percentage of carbon by mass in this compound was found to be 30.27%.
The complete combustion of 1.367 g this compound produces 1.765 g of sulfur dioxide
(SO2)
(i) Determine the empirical formula for this compound.
(ii) If a sample of this compound having the mass 3.781 × 103 mg contains 9.528 × 10–3 moles
of the compound, determine the molecular formula
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