Question

Mass of iron = Initial mass – Final mass = 15.5 – 8.5 = 7.0g Mass of copper (II) sulfate = 21.0g Mass of copper = 8.60g According to law of conservation of mass, Mass of iron + Mass of copper (II) sulfate = Mass of copper + Mass of iron (II) sulfate 7.0g + 21.0g = 8.60g + Mass of iron (II) sulfate So, Mass of iron (II) sulfate = 19.40g

Answer 1

Explanation:

Initial mass – Final mass= 15.5 – 8.5 = 7.0gMass of copper (II) sulfate = 21.0gMass of copper = 8.60gAccording to law of conservation of mass,Mass of iron + Mass of copper (II) sulfate = Mass of copper + Mass ofiron (II) sulfate7.0g + 21.0g = 8.60g + Mass ofiron (II) sulfateSo,Mass of iron (II) sulfate = 19.40g8