Question

- Please help ASAP and include steps (pls no links)

Answer 1

Answer:

2. 1 gram of Uranium (U)

Explanation:

1.

1 g Be x 1 mol/ 9.012182 g = 0.1109609193 mol Be

0.1109609193 mol Be x 6.0221409e+23/ 1 mol = 6.68x10^22 atoms of Be

2.

1 g U x 1 mol/ 238.0289 g = 4.20117053x10^-03 mol U

4.20117053x10^-03 mol U x 6.0221409e+23/ 1 mol = 2.53x10^21

3.

1 g S x 1 mol/ 32.066 g = 0.03118567954 mol S

0.03118567954 mol S x 6.0221409e+23/ 1 mol = 1.88x10^22

4.

1 g Fe x 1 mol/ 55.847 g = 0.01790606478 mol Fe

0.01790606478 mol Fe x 6.0221409e+23/ 1 mol = 1.078328451x10^22