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| 1. |
a student has a piece of copper sulphate crystal .explain the method of calculating the number of CuSO4 molecules in the crystal |
| Answer» TION:FIND out the mass of sample taken ,find out MOLECULAR mass (63.5+32+4×16) find number of MOLES which is given mass /molecular mass .in 1mole we have Avogadro no (6.6×10^23) of moleculesso use unitary method to find out no of MOLECULES | |