Question

weight of 0.25 Gram atom of calcium

Answer 1

Your answer is --

0.25 Gram atom of calcium means
0.25 mol.of calicum

Now ,


1 mol calcium = 40gram

Therefore

0.25 mol = 40×0.25 = 10gram



Henec, weight of 0.25 Gram atom of calcium is 10gram

Answer 2

Answer:

May the above picture helps you...