OpenStudy (anonymous):

A compound has an empirical formula of NiCl2.6 H2O . How many moles of water are there in one mole of this compound? 1 2 6 0.5

4 years ago
OpenStudy (doc.brown):

How many Ni, how many Cl, how many H2O in 1 molecule?

4 years ago
OpenStudy (anonymous):

I'm not sure how to go about figuring this question out! But, I think their are 2 Cl, 1Ni, and 6 H2O.

4 years ago
OpenStudy (doc.brown):

You got the answer there. Remember a mole is a metric heck-of-a-lot of atoms. If one molecule has 6H20, then 5 molecules has 6H2O x 5 = 30H20 and a heck-of-a-lot of molecules has 6H2O heck-of-a-lot of H20. $1 mol = 602214179300000000000000 atoms$$6H_{2}O \times 602214179300000000000000 = 3613285075000000000000000H_{2}O$

4 years ago