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1 points Save Anawe culate the densty in g’i UESTION 15 A solid object with a mass of 6.31g was dropped into a graduated cyinder that contained 24 6 l of water The water level rose to 27 mil. Cal Report only the number the program will not recognize the unit and will mark it incorect)
Expert Answer
Answer
1. Density= mass/Volume = 6.31/26.7-24.6 = 3.01 g/mL
2. 2Mg + O2 –> 2MgO
2 moles of Mg ( 48.6 g) combines with 1 mole of O2 (32 g) to yield 2 moles of MgO (80.6 g)
The ash weighs more than the original sample of magnesium
