Answer:
Step-by-step explanation:
The equivalent mass of the metal can be calculated using the following equation:
Equivalent Mass = (3.15 g Nitrate)/(1.35 g Metal Oxide) * (1 mole Nitrate)/(1 mole Metal Oxide)
Using the molar masses of nitrate (NO3) and metal oxide (MO):
Equivalent Mass = (3.15 g NO3)/(1.35 g MO) * (1 mol NO3)/(1 mol MO)
= (3.15 g NO3)/(1.35 g MO) * (62.00 g NO3)/(molar mass of MO)
The molar mass of the metal oxide (MO) must be known to calculate the equivalent mass of the metal.