Question

which of the following has smallest number of molecules a)0.1mole of CO2 gas b)11.2l of co2 at ntp c)22g of co2 gas c)22.4×10cube ml of co2 gas​

Answer 1

Answer:The answer is *OPTION (a)*

Explanation:Here how it comes:

In option a, in 0.1 mole of co2, we know 1 mole of co2 has 6.022*10^23 molecules

Then 0.1 mole of co2 has 6.022*10^22 molecules

In option b, we know 22.4L contains 6.022*10^23 molecules so 11.2L contains 3.011*10^23 molecules

In option c, we know 22400ml contains 6.022*10^23 molecules so 22.4*10^3ml contains 6.022*10^23 molecules.... So the lowest is in option a

Answer 2

Answer:

correct answer is 0.1 mole of

$co ^{2}$

gas