In chemistry class, Carlos calculated the number of molecules in 100 moles. The calculator displayed the number 6.02E25. What is the number of molecules in 100 moles in scientific notation?(1 point)
Responses
6.02+1025
6.02 plus 10 superscript 25 baseline
6.02×1025
6.02 times 10 superscript 25 baseline
25×106.02
25 times 10 superscript 6.02 baseline
6.02×25
6.02 times 25
The correct answer is 6.02 × 10^25.
To calculate the number of molecules in 100 moles, Carlos used Avogadro's constant, which represents the number of molecules in one mole of substance. Avogadro's constant is approximately 6.022 × 10^23 molecules per mole.
To find the number of molecules in 100 moles, Carlos multiplied the number of moles (100) by Avogadro's constant. Therefore, the calculation would be:
Number of molecules = 100 moles × 6.022 × 10^23 molecules per mole.
When Carlos entered this calculation into his calculator, he obtained the number 6.02E25. This number is in scientific notation, where the "E" represents "times 10 to the power of". So, 6.02E25 means 6.02 × 10^25.
Therefore, the number of molecules in 100 moles, represented in scientific notation, is 6.02 × 10^25.