How many moles of lactid acid (c3h6o3) are causing you pain?

Question

One of the thinga that we should do to fight the virus is to have some exercises, during exercises, lactid acid (c3h6o3) forms in the muscle causing muscle cramp. If 5.0g of lactid acid (c3h6o3) concentrate in your leg,

Answer 1

molar mass lactic acid = 12*3 + 1*6 + 16*3 = 36 + 6 + 48 = 90 g/mole

Convert 5.0 g lactic acid to moles of lactic acid:

5.00 g x 1 mol / 90 g = 0.0556 moles (3 sig.figs.)