Final answer:
To calculate the mass of the silver necklace with 0.0850 moles of silver, multiply the number of moles by the molar mass of silver (107.868 g/mol) to get approximately 9.17 grams.
Step-by-step explanation:
To find the mass of a silver necklace that contains 0.0850 moles of silver, you need to know the molar mass of silver. The molar mass of silver is 107.868 g/mol. Using the formula:
Mass = moles × molar mass
We can calculate the mass of the silver in the necklace:
Mass = 0.0850 moles × 107.868 g/mol
The calculation gives us the mass of the silver necklace:
Mass = 9.16878 grams
Therefore, the mass of the silver necklace is approximately 9.17 grams.