Question

In chemistry, 6.022× 1023 is an important number called the Avogadro constant (or Avogadro\'s number). It expresses the number of atoms or molecules in a mole. Notice that it is a really, really big number, as indicated by scientific notation with a large positive exponent. Enter 6.022× 1023 into the calculator shown here. Then, by trial and error, find the largest number that can be added to 6.022× 1023 without changing its displayed value (as shown on the screen).

Answer 1

4.4x10¹⁹

Step-by-step explanation:

Hello,

In this case, if we consider the four significant figures Avogadro's number has, the maximum number that can be added without changing the displayed value is 4.4x10¹⁹ as the result will be:

`6.022x10^(23)+4.4x10^(19)=6.02244x10^(23)`

Even when the value changes, the added fours do not round the last two of the Avogadro's number, thus, it will remain technically the same.

Best regards.

Answer 2

Avogadro's number is resented by the value of 6.022× 10²³ atoms per mole. It is made by Amedeo Avogadro, an Italian mathematical physicist. When we enter 6.022× 1023 into the calculator, the largest number that can be added to 6.022× 1023 without changing its displayed value is 10 x 1023.