Please explain the best you can! What is the number of molecules of 140 g of CO?

I really don't understand the type of answer this needs either... Is it a number or an equation type thing? If you could explain, it would be very helpful

explanation:

venn diagram is pictorial representation with of circles showing the relation between two finite sets or things. the intersection part of two circles conveys the relation present in between those sets or things.

here in the venn diagram of sand and salt two circles represent sand and salt. but the area falling under the intersection of these circle represents the mixture of sand and salt.

so, in a venn diagram the mixture will be placed in a middle that is in between the intersection of two circles.