Question

if there are 6.02x10²³ molecules in 18 grams of water, what is the scientific notation of the number of molecules in 7.2 kg of water?

Answer 1

Resposta:

7.2kg = 7200g

7200g/18g = 400

400 times bigger

6,02 × 10²³ × 400 =

6,02 × 10²³ × 4 × 10² =

24,08 × 10²⁵

2,408 × 10²⁶