what is the mass of 5 moles of sodium sulphite ( na2 sO3 ) given atomic masses; Na= 23g, S=32g,Ca=40
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Answer:
630 g
Explanation:
Molecular mass of Na2SO3= 23x2+32+16x3=126. That means mass of 1 mole of Na2SO3 = 126 g. Therefore, mass of 5 moles of Na2SO3=126x5=630 g
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