the weight of one atom of uranium is 238 amu. its actual wt. is ......g

3.94×10-22

3.94*10-22

3.94*10^-22

To determine the actual weight of one atom of uranium in grams, you need to convert the atomic mass unit (amu) to grams. The conversion factor is based on the fact that 1 amu is equal to 1.66054 × 10^-24 grams.

Here's how you can perform the conversion:

1. Start with the given atomic mass of uranium: 238 amu.
2. Multiply the atomic mass by the conversion factor to find the weight in grams:
238 amu * 1.66054 × 10^-24 grams/1 amu
= 3.9521352 × 10^-22 grams

Therefore, the actual weight of one atom of uranium is approximately 3.9521352 × 10^-22 grams.

1 mol U weighs 238g

There are 6.02E23 atoms in 1 mol.
1 atom x (238g/6.02E23 atoms) = ?g/a atom

3.95*10

3.01×10-22