If the density of indium is 7.31 g/cm², how many atoms are there in a indium piece of 30 dm wide, 5 cm long and 1.6 mm thick? (In: 114.8 g/mol, NA=6,02x10²³) 1.6 mm 5 cm In 30 dm A) 9,19 x 104 B) 9,19 x 102 C) 15,3 x 10²3 D) 15,3 x102 E) 918 x 102

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