I haven't done chem in high school. I know...i was stupid enough not to choose it..
And i am having a hard time in uni
Please explain and show steps by steps about how to do them..
A water solution containing 100.0g ethanol, CH3CH2OH, per litre of solution has a density of 0.984g cm ^-3. Calculate:
a) the molarity of CH3CH2OH
b) the molarity of CH3CH2OH in this solution
c) the mole fraction of CH3CH2OH
Find the molarity of magnesium ions in 2.30M MgCl2
Find the molarity of sodium ions in 1.5M Na3PO4