### Relationship between density and molarity

Posted:

**Wed Oct 03, 2018 2:42 pm**Today in discussion we learned that density was related to molarity as they had similar equations (D = m/V and C = n/V) and were given the example:

6.54g (1cm^3/0.7857) = 8.32 cm^3 = 8.32 mL

While I understand the calculations and the relationship between cm^3 and mL, I'm not sure where the 6.54 or 0.7857 comes from since there was no other context provided, as far as I could tell. Would someone be able to explain this and perhaps give a practical application of this theory in a practice problem?

Thank you!

6.54g (1cm^3/0.7857) = 8.32 cm^3 = 8.32 mL

While I understand the calculations and the relationship between cm^3 and mL, I'm not sure where the 6.54 or 0.7857 comes from since there was no other context provided, as far as I could tell. Would someone be able to explain this and perhaps give a practical application of this theory in a practice problem?

Thank you!