Question

Find the molar mass of Lead(II) Nitrate and Potassium Dichromate

Answer 1

do you know about this lesson?

Answer 2

I’ll walk you through one and let you try the other on your own

Lead(II) Nitrate

Because there are multiple possible charges for lead, the II tells us this is a + 2 charge

The nitrate ion is NO3- with a -1 charge (for polyatomic ions like nitrate you have to look up/memorize the charge and atoms)

To balance out the charges to 0 you must therefore have 2 nitrate ions to balance out the +2 on the lead

Pb(NO3)2 (make sure your subscripts are correct, I’m on my phone so I can’t show you but the 2 and 3 are both subscripts)

Using the same logic, try potassium dichromate

Answer 3

I'm gonna be completely honest, i have no idea how to convert any of them. All i know is Di means two