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Answer the following question:
  
Calculate the molar mass of the following substances.
 
(a). Ethyne (\(C_2H_2\)) molar mass is .

(b). Sulphur molecule (\(S_8\)) molar mass is .
 
(c). Phosphorus molecule (\(P_4\)) molar mass is .

(d). Hydrochloric acid (\(HCl\)) molar mass is .

(e). Nitric acid (\(HNO_3\)) molar mass is .