[AngelaV]

I'm in formula hell.  I've been looking at formulas for hours.  Can't find the one I need to figure out this one.

How many grams of solute are in 3.5 L of 1.4 Moles Al(NO3)3

I have a few more problems like it too.  I think if I see it once, I will know what to do.

Thanks in advance.

[UG]

How many grams of solute are in 3.5 L of 1.4 Moles Al(NO3)3

Do you mean 1.4 moles per litre?
If you do you first got to work out the number of moles of Al(NO₃)₃ in 3.5 litres. n= c(concentration in mol L^-1) x V(volume in litres). Once you have this, the mass can be calculated by multiplying n by the molar mass of Al(NO₃)₃