How many molecules are in 15 moles of CO2?

Mole is a unit for measuring a large number of very small entities, like atoms, molecules, ions, etc. And 1 mole of substance is equal to 6.02214076 × 10^23. So if there is 1 mole of CO2, that means we have 6.02214076 × 10^23 CO2 molecules of CO2 in 1 mole of CO2.

Explanation:

in the given question, the partial pressure is calculated by using the ideal gas equation, that is, pv = nrt

here, p is pressure, v is volume = 25 l, n is number of moles = 0.0104 moles, r is gas constant = -0.0821 l.atm / mol.k

t is temperature = 273 k

p = nrt / v

p = (0.0104 mol × 0.0821 l.atm / mol.k × 273 k) / 25 l

= 0.0093 atm

i think it's c. i'm not sure but i think so.