Question

convert the following into number of moles a)1.8x10^24 molecules of co2 b)1.204x10^23 atoms of sodium​

Answer 1

Answer:

1 mole = 6.022 × 10²³ molecules or atoms.

a) 1.8x10²⁴ Molecules of CO2

$\frac{1.8 \times {10}^{24} }{6.022 \times {10}^{23} } = 2.989$

which is approximately equal to 3 moles

b) 1.204x10^23 atoms of Na

$\frac{1.204 \times {10}^{23} }{6.022 \times {10}^{23} } = 0.199$

which is approximately equal to 0.2 moles