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pochemuha
3 years ago
7

How many grams is in a 5 pound sample? express your answer in scientific notation with four significant figures. (1 pound = 453.

592 grams)?
A) 2.3 x 10^3 g
B) 1.1 x 10^4 g
C) 2.27 x 10^2 g
D) 2.268 x 10^3 g
Chemistry
2 answers:
marishachu [46]3 years ago
8 0

Answer:

D) 2.3 x 10^3 g

Explanation:

to know how many grams are in 5 pound its necesary to multiply the weight by the unit conversion factor 453.592 grams/pound

5 pound * 453.592 grams / pound = 2267.96 grams

because it is necesary to express the answer in scientific notation with four significant figures, the value obtained initially is expressed in scientific notation (1)  and then rounded up with these significant figures (2)

2267.96 grams = 2.26796 x 10^3 (1)

2.26796 x 10^3 ----> 2.268 x 10^3 (2)

d1i1m1o1n [39]3 years ago
3 0
The answer is A. I hope this helps
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