Question

A ball bearing similar to problem 1.1 has the following composition of alloying elements (once again the remainder is iron) and has a weight of 4.137g. If we removed 10 sextillion atoms from the ball bearing how much would the remaining chromium in the modified ball bearing weigh? The answer should be in grams and have 3 decimals of accuracy.

Component	Weight %
Sulfur	0.036
Silicon	0.201
Phosphorus	0.033
Manganese	0.425
Carbon	0.366
Molybdenum	0.281
Chromium	0.909

Answer 1