a. Use these A r values (Fe = 55.8, N = 14.0, O = 16.0, S =
Question:
a. Use these Ar values (Fe = 55.8, N = 14.0, O = 16.0, S = 32.1) to calculate the amount of substance in moles in each of the following:
i. 10.7 g of sulfur atoms
ii. 64.2 g of sulfur molecules (S8)
iii. 60.45 g of anhydrous iron(III) nitrate, Fe(NO3)3.
b. Use the value of the Avogadro constant (6.02 × 1023 mol–1) to calculate the total number of atoms in 7.10 g of chlorine atoms. (Ar value: Cl = 35.5)
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a i No of moles Mass Molar Mass therefore number of moles of 107g of Sulphur atoms 107 321 033 ...View the full answer
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Related Book For 
Cambridge International AS And A Level Chemistry Coursebook
ISBN: 9781316637739
2nd Edition
Authors: Lawrie Ryan, Roger Norris
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