Answer :
To find the mass in grams of 1.6943 moles of manganese (Mn), you need to use the molar mass of manganese. The molar mass of manganese is approximately 54.938 grams per mole.
Here's how you can calculate the mass:
1. Identify the amount in moles:
You have 1.6943 moles of manganese.
2. Identify the molar mass of manganese:
The molar mass of manganese is 54.938 g/mol.
3. Use the formula to calculate mass:
The formula to calculate mass is:
[tex]\[ \text{mass} = \text{moles} \times \text{molar mass} \][/tex]
4. Plug in the values:
[tex]\[ \text{mass} = 1.6943 \, \text{mol} \times 54.938 \, \text{g/mol} \][/tex]
5. Calculate:
When you multiply these values, you get the mass of manganese:
[tex]\[ \text{mass} = 93.081 \, \text{g} \][/tex]
Therefore, the mass of 1.6943 moles of manganese is approximately 93.081 grams.
Since the options given are a) 1.12 g, b) 1.69 g, and c) 56.543 g, none of them match exactly. It’s important to note that calculations show a different result than provided options, it might be a good idea to revisit the options to verify them or consult additional resources for confirmation.
Here's how you can calculate the mass:
1. Identify the amount in moles:
You have 1.6943 moles of manganese.
2. Identify the molar mass of manganese:
The molar mass of manganese is 54.938 g/mol.
3. Use the formula to calculate mass:
The formula to calculate mass is:
[tex]\[ \text{mass} = \text{moles} \times \text{molar mass} \][/tex]
4. Plug in the values:
[tex]\[ \text{mass} = 1.6943 \, \text{mol} \times 54.938 \, \text{g/mol} \][/tex]
5. Calculate:
When you multiply these values, you get the mass of manganese:
[tex]\[ \text{mass} = 93.081 \, \text{g} \][/tex]
Therefore, the mass of 1.6943 moles of manganese is approximately 93.081 grams.
Since the options given are a) 1.12 g, b) 1.69 g, and c) 56.543 g, none of them match exactly. It’s important to note that calculations show a different result than provided options, it might be a good idea to revisit the options to verify them or consult additional resources for confirmation.
