What is the mass, in grams, of 3.57×10^−2 ?

What's the compound/substance though?

3.57 x 10^-2 WHAT? sheep? goats? bats? cars? atoms? people?

To find the mass of 3.57 × 10^−2 grams, we can use scientific notation. The number before the multiplication symbol (3.57) is called the coefficient, and the number after the multiplication symbol (10^−2) is the exponent.

First, we need to understand the meaning of the exponent. In scientific notation, raising 10 to a positive exponent means multiplying the coefficient by 10 as many times as the exponent indicates. In this case, 10^−2 means dividing the coefficient by 10 twice.

So, to find the mass, we divide 3.57 by 10 twice:

3.57 ÷ 10 = 0.357
0.357 ÷ 10 = 0.0357

Therefore, the mass of 3.57 × 10^−2 grams is 0.0357 grams.