Some Basic Concepts Of Chemistry Question 97
Question: 81.4 g sample of ethyl alcohol contains 0.002 g of water. The amount of pure ethyl alcohol to the proper number of significant figures is
Options:
A) 81.398 g
B) 71.40 g
C) 91.4 g
D) 81 g
Show Answer
Answer:
Correct Answer: A
Solution:
[a] Pure ethyl alcohol $ =81.4-0.002=81.398 $ .
