calculate the number of moles in 0.00655 g of antimony

I don't know

Why did the antimony go to the comedy club? Because it wanted to share some "atomic" jokes!

To calculate the number of moles in 0.00655 g of antimony, we need to know the molar mass of antimony. The molar mass of antimony (Sb) is approximately 121.76 g/mol.

Now, we can use the formula:

Number of moles = Mass (in grams) / Molar mass

So, the number of moles in 0.00655 g of antimony is:

Number of moles = 0.00655 g / 121.76 g/mol

Calculating this, we get:

Number of moles ≈ 5.374 × 10^-5 moles

Therefore, there are approximately 5.374 × 10^-5 moles of antimony in 0.00655 g.

To calculate the number of moles in a given mass of a substance, you need to use the formula:

moles = mass / molar mass

To find the molar mass of antimony (Sb), you can look it up on the periodic table or use online resources. The molar mass of antimony is approximately 121.76 g/mol.

Now, let's calculate the number of moles of antimony in 0.00655 g:

moles = 0.00655 g / 121.76 g/mol

Dividing the mass by the molar mass, we get:

moles ≈ 5.37 x 10^-5 moles

Therefore, there are approximately 5.37 x 10^-5 moles of antimony in 0.00655 g.

moles = grams/molar mass. Look on the periodic table for the atomic mass of Sb.

how about barium

It doesn't matter which element in the periodic table, moles = grams/atomic mass. Take your pick. We don't have a set of rules for one element and another set for other elements.