. (i) What is the mass of 10 moles of sodium sulphite (Na 2S03) (ii) Calculate number of molecules in 11 g SO2
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Explanation:
mole is defined as the mass of the substance which consists of the equal quantity of basic units. A mole fraction indicates the number of chemical elements. One mole of any substance is equal to the value of Avagadro number (6.023 x 1023). It can be used to measure the products obtained from the chemical reaction. The unit is denoted by mol.
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