Calculate the percentage by mass of the active ingredient in an antacid tablet that weighs 1.36 g if it contains 520 mg of calcium carbonate

Answer 1

What is the total dose required for a 140 lb patient if the amount required is 28 mg/kg bodyweight?

Answer 2

At 28.2 C, a 208 g sample of a metal absorbs 1.75 kJ of heat (q). The specific heat (Cs) of this
metal is 0.137 J/g oC. what is the final temperature of the metal?

Answer 3

percent=.520/1.36 x 100

dose=140lb*1kg/2.2lb * 28mg/kg

Q=mc(tf-ti)
solve for Tf