Is it normal for a newborn baby to lose 150 grams 1 day after being born?

It's not the figure that matters but the percentage. 5% loss is normal for formula fed babies while 7-10% is normal for breastfed babies. They will gain back the weight in the next 10-14 days. http://americanpregnancy.org/first-year-of-life/newborn-weight-gain/