Question

Chemistry Solved Problems
1. How many significant figures are there in the following
numbers?
(i) 43.87
(ii) 12.340
(iii) 0.0036
(iv) 4.51 x 10⁴
2. Express the following to four significant figures:
(i) 1.236981 (ii) 45.3712
(iii) 23.4551
(iv) 12.6652
(v) 2.67891 x 10³
3. Express the results of the following calculations of the
appropriate numbers of significant figure:
(i) 25.6 + 2.3123 (ii) 45.546 - 2.32
(iii) 12.4 x 0.0056 (iv) 8.8 +2.1234​

Answer 1

Answer:

1. iv
2. v
3. ii

hope it helps you..